I recently brought my 2005 STi to XXTuning for an SR55 upgrade and a Protune.

Tony did a great job on the tune. The car starts easy, idles perfect and pulls strong. The boost comes in later than the stock turbo does but hits hard once spooled up. Both the torque and HP curves are nice and smooth.

The installation of all the mods was clean and professional. All my old parts were neatly boxed in the trunk when I picked up the car. Great service and I would recommend these guys to anyone.

Take a look at the HP/TQ and AFR/Boost graphs below.


Current mods are:

SR55
Hyperflow TMIC
APS Short Ram
PE850 Injectors
Cobb TBE w/cat
Walbro FP
XXTuning Header/Up-Pipe combo
Exedy Stg 2 clutch
Cobb AP
Blitz SBC-id III
Turbosmart Dual Port BOV
One step colder plugs

http://img411.imageshack.us/img411/3164/kevin22ed.jpg
http://img411.imageshack.us/img411/311/kevin12gy.jpg

Those number seem similar to a green. Any reason you decided on the SR55? Just asking not trying flame.

I made my decision after wading through lots of posts and talking with the guys at XX. They have had good luck tuning with the SR55. The other cars in their database with a setup similar to mine are making good power. The main differences on my car were TMIC and catted exhaust.

Maybe I'm reading it wrong but it says that the numbers are flywheel and yet you're making not much more than stock?

Its actually WHP - the Dynapack software shows flywheel but the reading is the power at the wheels.

sounds like a good setup. i dont disagree with your choice of turbo, but why is the car only tuned for 330ish whp? that is almost achivable on the stock turbo, or a slightly uprated turbo.

my biased thinking makes me think you could have saved a few bucks and done a Green or an SZ49... you coulda got a set of really great tires with what you saved.


oh, and props on keeping the TMIC.. i like dat

nice # I am wondering how much you could have gotten on pump or was that it and are you going to a race gas map

later Jeff

I didnt mention it but this run was on 93 gas. As far as it being tuned to this power level I am not sure. The only differences in my setup to some other cars they had nice results with were the Cobb exhaust and a TMIC. Does anyone know of any limitations with the Cobb catted exhaust? The only info I could find is that there is a taper to 2.5" near the cat.

id say that if you have power goals past 300whp, i would stay away from cobb parts.

theyre great stuff, but theyre oriented towards appriciation of the car, not huge power.

if they made a 3" catless racing catback, with minimal bends, and that nice inconspicuous looking muffler they use... id be game.

Does anyone know of any limitations with the Cobb catted exhaust? The only info I could find is that there is a taper to 2.5" near the cat.

cobb states 450 hp is where you start to run into flow limitations, and the cat is worth another 1% loss

450 less 20% drivetrain is about 360whp

I'd say that if you have power goals past 300whp, i would stay away from cobb parts. I'd say you should do your research before you spread misinformation.

how is that misinforamtion.. i wasnt saying that 300whp is the absolute end of the line for cobb parts.. just that if you are aiming for higher power, there are more efficiant products out there to support your goal.

even if you are able to make 450hp with a cobb exhuast, and the exhaust being the limiting factor... you could definatly free up more power by changing the exhaust itself. again, i have nothing against cobb, its a great company.. but if i have 500hp as my goal, im going to use the right part for the right job.

this is my personal opinion. if anyone takes offence to that, then go get your own opinion, dont worry about what i think.

Well, I agree with you that those with big power goals shouldn't get a turboback that narrows to 2.5" at one joint.

But it does the forum and those that search the forum no good to post patently untrue statements like " if you have power goals past 300whp, i would stay away from cobb parts." when theres another 60whp on the table before the piece becomes a restriction.

/hijack

niiice,

Well back to my specific situation I am trying to figure out whether its the IC or the exhaust thats preventing further gains. If its the IC then I am not sure I want to swap becuase I like the throttle response of the TMIC. If its the exhaust then that could be replaced with something less restrictive perhaps. I havn't had luck finding others with aftermarket turbos running the Cobb exhaust (with a Cat specifically) to compare results with. I would like to hear more opinions before spending money on a new exhaust and another tune.

Well back to my specific situation I am trying to figure out whether its the IC or the exhaust thats preventing further gains. If its the IC then I am not sure I want to swap becuase I like the throttle response of the TMIC. If its the exhaust then that could be replaced with something less restrictive perhaps. I havn't had luck finding others with aftermarket turbos running the Cobb exhaust (with a Cat specifically) to compare results with. I would like to hear more opinions before spending money on a new exhaust and another tune.


I went from an exhaust similar to the Cobb (3in tapering down to a 2.5in prodrive muffler) to a full 3in and i gain 10whp and 12ft lb trq. That was with my 03wrx with a vf22 and supporting mods. I would talk to your tuner and see what he thinks. You said your results are similar to otherswith that turbo and on that dyno. Right? If not then what were their results? Also what does a stock sti put down on that dyno? I would think that maybe your #'s are a little low 10-15whp.

Well same setup as mine except for the exhaust and FMIC ran 377HP and 383 TQ. The stock STi got 251HP and 259TQ. That said, he is making roughly 40HP and 23 more TQ.

In speaking with Tony who tuned the car, it stopped producing power at those levels even after adding some more boost. The explanation is that that TMIC cant cool the air enough to continue to add timing. Its either that or the exhaust/cat is restricting enough to hold the power curve where it is.

i agree with your desire to keep the TMIC. when i get my 06 STi, im doing a Perrin TMIC, on an FP Green. im going to do alot of heat-wrapping, and a custom heatsheild for the turbo.

im not very familiar with your TMIC, but im hoping to be able to do over 400whp on pump gas. i wouldnt suspect yours should stop you from doing the same (or close to).

but then again, im not familiar with your IC or turbo, but ive heard that the SR55 can flow up to 500hp (pls correct me if im wrong), and Hyperflow claims its the biggest TMIC on the market, i wouldnt think 400whp is out of your reach with your current setup. but talk to your tuner, hes the only one thats going to have a straight answer for you, as he knows your car best.

good luck on the project

it may very well be a conservative tune, but those numbers seem low? youre using AP i assume since you mentioned a protune so you cant pull a log to see what you're set at. go utec, AP is worthless.

i'd say there is a good amount of power to be harvested with the installation of a large FMIC.

Good results. Thanks for sharing. Dyno numbers mean nothing. As long as you picked good number relatively that is all would consider + before/after ET times and trap speed. Get yourself a APS FMIC and see what really that bad boy can do ;)

i agree with your desire to keep the TMIC. when i get my 06 STi, im doing a Perrin TMIC, on an FP Green. im going to do alot of heat-wrapping, and a custom heatsheild for the turbo.

im not very familiar with your TMIC, but im hoping to be able to do over 400whp on pump gas. i wouldnt suspect yours should stop you from doing the same (or close to).

but then again, im not familiar with your IC or turbo, but ive heard that the SR55 can flow up to 500hp (pls correct me if im wrong), and Hyperflow claims its the biggest TMIC on the market, i wouldnt think 400whp is out of your reach with your current setup. but talk to your tuner, hes the only one thats going to have a straight answer for you, as he knows your car best.

good luck on the project

I have a sz49 and a Perrin TMIC with lots of heat wrapping and PDX got 330 on pump out of mine on the mustang dyno. Looking in thier files they get 330 w/TMIC and 350 with a FMIC so I think 400whp with a TMIC on pump is not going to happen unless you get some help with a high reading dyno.
H

I have a sz49 and a Perrin TMIC with lots of heat wrapping and PDX got 330 on pump out of mine on the mustang dyno. Looking in thier files they get 330 w/TMIC and 350 with a FMIC so I think 400whp with a TMIC on pump is not going to happen unless you get some help with a high reading dyno.
H

do you believe the TMIC to be your limitation?

i am also doing DPR stg3 heads/cams, DPR stg2 block. this will move the powerband up to 8000rpm. i have many other plans, trust me 400whp is achievable.

Can anyone explain to me in simple terms why a SR55 is in any way preferable to a Green, SZ49 or for that matter SZ55 ?

I just don't get it.

it may very well be a conservative tune, but those numbers seem low? youre using AP i assume since you mentioned a protune so you cant pull a log to see what you're set at. go utec, AP is worthless.

i'd say there is a good amount of power to be harvested with the installation of a large FMIC.


AP is not worthless. I have a UTEC too but if you look around here many tuners are doing just as well with the protuned ap's as they are with utec's.

AP is not worthless. I have a UTEC too but if you look around here many tuners are doing just as well with the protuned ap's as they are with utec's.


I agree, there are plenty of people seeing excellent results with an AP and a protune. In my scenario I think the tune is great and on XX's dyno I think the power curves look good. With my power curve though you will see vs others at about 4K RPM and up it peaks lower. Again thinking this could be due to either the IC or the exhaust. The turbo is holding boost nicely so I dont feel there is anything wrong there.

I agree, there are plenty of people seeing excellent results with an AP and a protune. In my scenario I think the tune is great and on XX's dyno I think the power curves look good. With my power curve though you will see vs others at about 4K RPM and up it peaks lower. Again thinking this could be due to either the IC or the exhaust. The turbo is holding boost nicely so I dont feel there is anything wrong there.


Do you have the new SR55 Turbo or the old one?

Its actually WHP - the Dynapack software shows flywheel but the reading is the power at the wheels.



Im totally not trying to be a dick, but Dynapack measure HP at the Hubs not the wheels. There is a big difference. When you take off 160lbs of wheels/tires directly of the driveline that definately changes the numbers. Closer to a flywheel number. Good numbers nonetheless, but not true WHP

Its the new verision of the SR55.

As far as the dyno goes I am pretty sure there is a parameter for wheel size/weight in the dyno software. I would think that would accurately reflect WHP if you took that into account, no?

If someone knows better, please correct me if thats wrong.

Can anyone explain to me in simple terms why a SR55 is in any way preferable to a Green, SZ49 or for that matter SZ55 ?

I just don't get it.


Dual ball bearing. If you don't want a mitsu turbo and you don't want a rotated mount there aren't many choices. Spool on the turbo is quick.

Its the new verision of the SR55.

As far as the dyno goes I am pretty sure there is a parameter for wheel size/weight in the dyno software. I would think that would accurately reflect WHP if you took that into account, no?

If someone knows better, please correct me if thats wrong.

Who did you buy your turbo from and when?

I bought it from XXTuning about a week ago.

I bought it from XXTuning about a week ago.

I just spoke to john 2 days ago, and he said they received 30 turbos all of which are the older versions.

I just spoke to john 2 days ago, and he said they received 30 turbos all of which are the older versions.

Interesting....

I asked both John and Tony if it was the newer version. I was told yes. Is there any way to check without pulling it off?

You should gain a good amount of power by going to a FMIC and losing the cat... nice looking power band...

what are you aiming for HPwise, for your next stage?

Interesting....

I asked both John and Tony if it was the newer version. I was told yes. Is there any way to check without pulling it off?

this is a good question, I want to know to.

Interesting....

I asked both John and Tony if it was the newer version. I was told yes. Is there any way to check without pulling it off?

Originally Posted by keyser_soze


I bought mine not even a month ago. I got the new version with the larger (27mm I beleive wastegate).

Also I would like to know is that the only thing different (i.e. is the exhaust housing scrool any different or any other things?)

Thanks




The SR 55 has had a number of small engineering upgrades recently, one being the larger bypass orifice in the wastegate and the other being a later spec machining operation to the inducer passage of the turbine housing (the inducer is the slot in the turbine housing in which the turbine wheel operates) and this machining upgrade to the latest Garrett maching specs increases turbine flow by appox 15 % without impacting on turbo spool up.

Peter
APS

thats good info, thanks.

id say that if you have power goals past 300whp, i would stay away from cobb parts.

.
Wow are you a fvcking retard? :lol:

So is anyone of the opinion a FMIC and true 3" exhaust all the way back are worth roughly 40+ more HP? I dont want to just chase dyno numbers here but I would like to eliminate any obvious limitations in my setup. I am not looking at a next stage really yet, just want to maximize what I currently have.

Im totally not trying to be a dick, but Dynapack measure HP at the Hubs not the wheels. There is a big difference. When you take off 160lbs of wheels/tires directly of the driveline that definately changes the numbers. Closer to a flywheel number. Good numbers nonetheless, but not true WHP


accually the numbers are corrected through the software so they are to the wheels. get ur facts straight. i know because im good friends with a lot of workers at xx

So is anyone of the opinion a FMIC and true 3" exhaust all the way back are worth roughly 40+ more HP? I dont want to just chase dyno numbers here but I would like to eliminate any obvious limitations in my setup. I am not looking at a next stage really yet, just want to maximize what I currently have.

I think so. That turbo has to be heat soaking the tmic. You also need the exhaust air to flow out as fast as possible. I think you will get more power out of a front mount than just removing your cat but both will help greatly.

how much boost did tony push through that sr55.....

i know danny's (shop car is pushing 24-28lbs) he's at 450 wheel

It was tuned at 20-21 PSI on pump gas (93). I think the shop car at that power level was on race gas.

again, im not very experienced in tuning and such... but if i had an SR55 @ 20some psi, and the mods that you have.. i would be expecting a tad closer to 400whp.

im curious as to what your tuner has to say about this, i would really like to know if thats a reasonable goal with your parts.

i wish a few more people with SR55s would speak up here.

I have an email directly from APS telling me that the sr55 should NEVER be used with ANY top mount. I went with the front mount. I didnt want to but I felt like I had to. I think I would have been fine now that they have decent top mounts out. :mad:

I have an email directly from APS telling me that the sr55 should NEVER be used with ANY top mount. I went with the front mount. I didnt want to but I felt like I had to. I think I would have been fine now that they have decent top mounts out. :mad:I believe that a large FMIC is a far better match/option for a large 55 lb per minute tutbocharger. Fitting an SR 55 turbocharger with a larger TMIC I would suggest is to some degree power limiting to the engines performance (the pressure drop across the FMIC will be far greater than a good sized FMIC ) as the reduction in charge air temperature won't be anywhere near that of a large efficient FMIC imho. :cool:

Peter

again, im not very experienced in tuning and such... but if i had an SR55 @ 20some psi, and the mods that you have.. i would be expecting a tad closer to 400whp. I'm sure this STI would be over 400 WHP on either a dyno jet or dyna pack dyno - some brands of dynos are far more optimistic than others. :D

Peter

so how do you know what version you have any visual characteristics.


thanks jeff

One way you could keep teh topmount would be to run water injection or methenol. However if you have a daily driver, you wouldn't be able to only do it on demand like with a utec since it has 5 map selections. Also, after limiting the mechanical restrictions, (TMIC, Exhaust). Your next limitation may be fuel. If you have acess to 100octane or feel like carrying a can of Torco in your trunk, You got about another 40whp. Once again, you need a seperate map ie: utec, however if your a fill it up at the pump, and shut the hood after the tune and just drive, the FMIC and TBE full 3in would suport your setup. :)

I believe that a large FMIC is a far better match/option for a large 55 lb per minute tutbocharger. Fitting an SR 55 turbocharger with a larger TMIC I would suggest is to some degree power limiting to the engines performance (the pressure drop across the FMIC will be far greater than a good sized TMIC) as the reduction in charge air temperature won't be anywhere near that of a large efficient FMIC imho. :cool:

Peter

Is this what you ment??

i made 393 and 380 tq on a dyno jet with the sr55
dyno packs read very high compared to all other dynos.
i d say go catless and fmic and think about utec cobb is reall for beginners imo
or should i say those thta arent makin serious power. then you have more tunning room as far as 5 different maps . with nx intercooler spray i made 423 whp and 400 tq
27lbs on a mix. good luck either way, but know you have the potential to make 400whp plus. :D

think about utec cobb is reall for beginners imo
or should i say those thta arent makin serious power. then you have more tunning room as far as 5 different maps .

Your statement is false! A Cobb AccesECU/Protune is superior to UTEC. The tuner actually has a lot more control and able to retain the ECU's ability to adapt, to changing conditions.

The SR55 clearly has a lot more head-room for power. The tune sounds like a very solid yet conservative one. I would say the TMIC and 93OCT are the limiting factors. The cat in the exhaust is obviously holding things back a bit; your not going to gain much more by removing it, that is until you run it at higher power levels.

I would consider water/meth/alchy injection or 100OCT, which is possible with an Accesport holding the proper Maps. Tony can tune for it, and probably a
more efficient I/C if the full potential of the SR55 is going to be realized.

Other mods I would think about.
TGV deletes
silicone inlet hose

yea ok so you must be another know it all huh? cobb is superior to utec? WOW !
you must be smoking some good **** pssssshhh....
cobb accessport / pro tune / etc.. well if you add the tbo xs wideband etc...
superior is an overstatement. i do like the feeling of a stock ecu but take a survey
on upgraded turbo wrx/sti and then retract your statement. as you where..
carry on.

i made 393 and 380 tq on a dyno jet with the sr55
dyno packs read very high compared to all other dynos.
i d say go catless and fmic and think about utec cobb is reall for beginners imo
or should i say those thta arent makin serious power. then you have more tunning room as far as 5 different maps . with nx intercooler spray i made 423 whp and 400 tq
27lbs on a mix. good luck either way, but know you have the potential to make 400whp plus. :D

What's your mod list?

So your saying that if you have the accesport pluged in to the OBD2 port, you can flash custom tune maps on the fly like the map selector switch on a utec? How many?

Your statement is false! A Cobb AccesECU/Protune is superior to UTEC. The tuner actually has a lot more control and able to retain the ECU's ability to adapt, to changing conditions.

I would consider water/meth/alchy injection or 100OCT, which is possible with an Accesport holding the proper Maps. Tony can tune for it, and probably a
more efficient I/C if the full potential of the SR55 is going to be realized.

Other mods I would think about.
TGV deletes
silicone inlet hose

My STI is at XX right now getting an SR55. They recommended that I use a FMIC and a catless exhaust to get the most out of the turbo. TMIC is fine for short bursts, 1/4 mile runs, but on the highway or public streets it will heat soak really bad. The cat in the exhaust will really clog thing up. I would look into upgrading both.

I though Kdushney's STI put down 364HP to the wheels?
I may have heard wrong but thats the rumor.
You might not have gotten the highest Dyno printout.

What's your mod list?

aps sr55
utec / map switch
txs tbe
txs fmic
perrin big maf intake
perrin turbo inlet hose
perrin oil catch can
defi guages bf boost , oil psi, egt
walboro 255l
power e. 850's
i just put in nx intercooler spray.
need to get a header too.
:D

i think a 3 in. catless exhaust and a FMIC is the awnser here...

My STI is at XX right now getting an SR55. They recommended that I use a FMIC and a catless exhaust to get the most out of the turbo. TMIC is fine for short bursts, 1/4 mile runs, but on the highway or public streets it will heat soak really bad. The cat in the exhaust will really clog thing up. I would look into upgrading both.

I though Kdushney's STI put down 364HP to the wheels?
I may have heard wrong but thats the rumor.
You might not have gotten the highest Dyno printout.


That number is news to me. My dyno plot is at the beginning of the post. I was recommended the TMIC when my SR55 was installed. The exhaust I already had and I think the restriction is a combination of the cat and the reduction to 2.5" near the cat.

Maybe I was quoted the #'s for another STI that was done recently. I saw that you had a TMIC and cats in your exhaust and assumed it was you, John said the car had a TMIC and a restrictive exhaust.

Your #'s look to be 335WHP & 358WTQ @ 20-21PSI on 93 octane, that seems low.

I had a VF22, stock TMIC, PE 850cc, UTEC, Perrin short ram, GT-Spec Header, TXS TBw/cat exhaust, 255LPH fuel pump and was putting down 289.7WHP & 362.2WTQ @ 20PSI on 93 octane. I was told that the cat was robbing around 20WHP & 25WTQ from my setup, and a FMIC could result in a good HP increase at the expense of turbo response and a little torque loss. A friend of mine did the no-cat, FMIC thing and got 326.7WHP & 356.4WTQ with a VF22. Very close to the #'s you put down. A guy a E-town was showing off a dyno sheet of his STI with a VF39 and he made 338WHP & 381WTQ with very close mods to your list.

If you figure dropping the cat into your #'s you have 355WHP & 383WTQ, but the SR55 is a better turbo so you may see even better gains than that. If you find your restriction 370WHP-390WHP should be a realistic goal on pump gas. I know XX had problems with the SR55 sucking shut silicone turbo inlet pipes. I didn't see one on your mods list, but if you have one it may be part of the problem.

Did you do a baseline run when the car was stock? How where those #'s when compared to other stock STI's run on XX's dyno and other dynos. XX's dyno could be putting out low #'s copared to other dynos. My car stock dynoed 248.4WHP & 252.8WTQ, these #'s are low compared to what I see listed on other sites. Some sites claim 425 crank HP out of a TBE, a CAI, TMIC and colder plugs. The dyno they use may read high.

I'll let you know how it comes out for me. My mods when I get the car back are:
SR55
APS DR725 FMIC
APS 3.5" exhaust
APS CAI 65mm
PE 850cc injectors
XX Tuning fuel rail kit
GT-Spec header
UTEC w/ map selector switch
255LPH fuel pump
One step colder plugs
Exedy stage 2 clutch
STI hardened motor mounts
STI hardened trans mount
Driveshaftshop rear axles
TXS Type-H BOV
Perrin oil catch can
Defi boost gauge
Defi EGT gauge

I am hoping for 380+WHP on 93 octane, 420+WHP on race fuel.
I am also on Tunernetwork.com, Defiantspaz there too, PM me if you have any questions about my setup. defiantspaz@sbcglobal.net

TMIC is fine for short bursts, 1/4 mile runs, but on the highway or public streets it will heat soak really bad.

driving on public streets doesnt require red-lining the engine, and hitting peak boost. TMIC is perfect for around town too.

FMIC is good for track racing, where you are driving hard for long periods of time.

even for auto-x i would prefer a TMIC, cause you will benifit more from throttle response than peak power.

Maybe I was quoted the #'s for another STI that was done recently. I saw that you had a TMIC and cats in your exhaust and assumed it was you, John said the car had a TMIC and a restrictive exhaust.

Your #'s look to be 335WHP & 358WTQ @ 20-21PSI on 93 octane, that seems low.

I had a VF22, stock TMIC, PE 850cc, UTEC, Perrin short ram, GT-Spec Header, TXS TBw/cat exhaust, 255LPH fuel pump and was putting down 289.7WHP & 362.2WTQ @ 20PSI on 93 octane. I was told that the cat was robbing around 20WHP & 25WTQ from my setup, and a FMIC could result in a good HP increase at the expense of turbo response and a little torque loss. A friend of mine did the no-cat, FMIC thing and got 326.7WHP & 356.4WTQ with a VF22. Very close to the #'s you put down. A guy a E-town was showing off a dyno sheet of his STI with a VF39 and he made 338WHP & 381WTQ with very close mods to your list.

If you figure dropping the cat into your #'s you have 355WHP & 383WTQ, but the SR55 is a better turbo so you may see even better gains than that. If you find your restriction 370WHP-390WHP should be a realistic goal on pump gas. I know XX had problems with the SR55 sucking shut silicone turbo inlet pipes. I didn't see one on your mods list, but if you have one it may be part of the problem.

Did you do a baseline run when the car was stock? How where those #'s when compared to other stock STI's run on XX's dyno and other dynos. XX's dyno could be putting out low #'s copared to other dynos. My car stock dynoed 248.4WHP & 252.8WTQ, these #'s are low compared to what I see listed on other sites. Some sites claim 425 crank HP out of a TBE, a CAI, TMIC and colder plugs. The dyno they use may read high.

I'll let you know how it comes out for me. My mods when I get the car back are:
SR55
APS DR725 FMIC
APS 3.5" exhaust
APS CAI 65mm
PE 850cc injectors
XX Tuning fuel rail kit
GT-Spec header
UTEC w/ map selector switch
255LPH fuel pump
One step colder plugs
Exedy stage 2 clutch
STI hardened motor mounts
STI hardened trans mount
Driveshaftshop rear axles
TXS Type-H BOV
Perrin oil catch can
Defi boost gauge
Defi EGT gauge

I am hoping for 380+WHP on 93 octane, 420+WHP on race fuel.
I am also on Tunernetwork.com, Defiantspaz there too, PM me if you have any questions about my setup. defiantspaz@sbcglobal.net


Unfortunately I dont have a baseline run before they did my upgrades. I guess in hindsight it would have been nice to see the gain over stock. Regardless I am going to look into IC and exhaust options.

Do you know what brand inlet pipe was collapsing with this turbo (and what intake)? I thought the Samco was performing well even on setups with upgraded turbos.

The Perrin turbo inlet pipe was the one that colapsed. How far it actually closed up I don't know, but it was noticable.

the cooling area of the TMIC is not the same as the FMIC and on the dyno the FMIC would be more efficient at transferring heat from the intake air.

You are right at low boost levels around town the TMIC is more than sufficient, but goof around for a little bit with your friends and it can, and will, get heat soaked really fast. With the FMIC the only truly hot car sorce by it is the radiator. The FMIC pipes may be under the hood but the velocity of the air inside the pipe should help prevent any heat transfer. The TMIC has the fan blowing hot air from the radiator, the engine, the exhaust, the turbo, and a nice comfy hood for a little blanket. Even driving on the highway the STI turns an above average amount of revs, increasing under hood heat. The big hood scoop helps bring in air , but the fact that the intercooler is under the hood with all of the hot running gear that is the problem.

I am not saying his choice was bad, I was going to do it myself when I looked into it a little futher and found it to be counter productive. He could have gone with an SR40 and made the same power for a lot less cash and the TMIC would probable have worked fine in that aplication, plus the spool up of the SR40 is much better than the SR55. So if turbo responce was the game why chose the bigger turbo with slower spool characteristics and choke it with a TMIC and a cat when you could have chosen the proper turbo for what you were looking for.

Kdushney this is not a smack at you, I was just explaining my opinion on useing a TMIC with your setup when a FMIC could yield you much greater results.