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Old 10-19-2006, 08:01 PM   #1
faheyr12
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Default Question Regarding General Modification on O6 Impreza WRX TR

My apologies if this is in the wrong thread, but I was unsure where to put it based on covering a few different topics. I recently purchased on 06 WRX TR and am considering putting a turboback exhaust on the car. At this point in time, everyone has advised engine management (Accessport) in order to be safe from overboosting. My questions are as follows: What kind of gains will I be looking at with full turboback exhaust plus engine management? My second question relates to the fact that some individuals have recommended a upgraded turbo (16G) OR external wastegate for other issues that I am unaware of. My questions on this matter are as follows: Is it necessary and the safest measure to upgrade the turbo on 06 WRX TR when putting a turboback exhaust plus EM on the car? Secondly, what kind of gains and price should I be expecting to see with an upgraded turbo such as 16G (looks like around $699 or so) along with turboback exhaust and engine management? Thanks for the help.
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Old 10-19-2006, 08:06 PM   #2
Capt Crunch
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With the EM and turboback you should be getting around 225 whp. Add a 16G and you'll be damn close to 300 whp depending on the dyno. You won't need an external wastegate for the stock turbo or the 16G.
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Old 10-19-2006, 08:32 PM   #3
dillsky
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First off get Cobb's Accessport....you'll have to wait a couple of weeks cause they are coming out with an updated version(Accessport 2.0). Once you get that, flash Stage 1. Save up some cash and get a TBE system, then flash Stage 2.......very noticable increase in power! After that if you want to do a turbo upgrade, Cobb has 2 maps available for the '06 WRX: vf39 map or the Fp18g map. I choose to do the fp18g map. Along with the upgraded turbo, you will have to get a bigger TMIC. The fp18g map is rated for 293whp. Cobbs website has all the info.......good luck
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Old 10-19-2006, 09:04 PM   #4
Bboy AJ
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Quote:
Originally Posted by dillsky View Post
First off get Cobb's Accessport....you'll have to wait a couple of weeks cause they are coming out with an updated version(Accessport 2.0). Once you get that, flash Stage 1. Save up some cash and get a TBE system, then flash Stage 2.......very noticable increase in power! After that if you want to do a turbo upgrade, Cobb has 2 maps available for the '06 WRX: vf39 map or the Fp18g map. I choose to do the fp18g map. Along with the upgraded turbo, you will have to get a bigger TMIC. The fp18g map is rated for 293whp. Cobbs website has all the info.......good luck
This is the right answer.

Oh, by the way, break in the car first.
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Old 10-19-2006, 09:22 PM   #5
dillsky
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Quote:
Originally Posted by Bboy AJ View Post
This is the right answer.

Oh, by the way, break in the car first.
I did forget to mention that!.......even though, i think i had stage 1 flashed at 600-650 miles. Probably a little to soon, but i just had that itch.
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Old 10-19-2006, 10:17 PM   #6
faheyr12
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Thanks for the input. The car has been broken in, made sure of that with dealer recommendations and all the input on this website. Have about 3,000 miles or so on the car at this point in time. I guess the other two areas I am curious on are 1. Whether or not the upgraded turbo or external wastegate are initially necessary when purchasing a turboback exhaust along with engine management? and 2. What should I be expecting to pay if I were to do a full turboback exhaust with engine management, along with an upgraded turbo (i.e. 16G or 18g)? Thanks again for the help.
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Old 10-19-2006, 11:09 PM   #7
AWD>FWD
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I waited 'til 5k miles to mod my car....

give it time to make sure the factory didn't f anything up before you mess around with modifying the car.
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Old 10-19-2006, 11:19 PM   #8
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I say you don't need EM until you upgrade turbo or want more out of your engine.

I have done a TBE with uppipe to free all the cats and made 225awhp and didn't need a tune but my friend at the time had the same mods and got a tune he made 250awhp so you can see the different. However getting your car dyno tune isn't cheap so if your low in the bank save the tune for major upgrades like stage 4.

Mike
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Old 10-20-2006, 12:03 PM   #9
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Do all of you guys work for Cobb or something?

Honestly, this is getting retarded around here...
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Old 10-20-2006, 12:22 PM   #10
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Quote:
Originally Posted by faheyr12 View Post
I guess the other two areas I am curious on are 1. Whether or not the upgraded turbo or external wastegate are initially necessary when purchasing a turboback exhaust along with engine management? and 2. What should I be expecting to pay if I were to do a full turboback exhaust with engine management, along with an upgraded turbo (i.e. 16G or 18g)? Thanks again for the help.
An upgraded turbo or an external wastegate are never necessary. Getting a TBE and EM will give you lots of power on the 06 and is a great upgrade. It in no way requires an upgraded turbo.

A full TBE with EM can run anywhere from 1 to 2 thousand depending on brands. An upgraded turbo will require an upgraded IC and (for safe measure) an upgraded fuel pump. The turbo, IC, and fp will run anywhere from 1500 to 2500.
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Old 10-20-2006, 01:02 PM   #11
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Originally Posted by REX8 View Post
Do all of you guys work for Cobb or something?

Honestly, this is getting retarded around here...
Fine he could even get an EcuTek, you happy?

EcuTek is a custom flash done by a tuner, which makes it a very custom to your car specifically.
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Old 10-20-2006, 01:11 PM   #12
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Quote:
Originally Posted by blueribbon View Post
I say you don't need EM until you upgrade turbo or want more out of your engine.

I have done a TBE with uppipe to free all the cats and made 225awhp and didn't need a tune but my friend at the time had the same mods and got a tune he made 250awhp so you can see the different. However getting your car dyno tune isn't cheap so if your low in the bank save the tune for major upgrades like stage 4.

Mike

Im sorry but this is just wrong. It may have worked great for you, but an 06 is a different beast then an 02.
If you're adding a TBE you really do need EM to control the boost more effectively, its not a pro Cobb or anti Cobb deal. The AP is just the most hassle free way of achieving EM and still maintaining OBD emission testing (which is important to those of us in emission tested states).
I agree with:
Start with Stage 1 (Cobb AP flash, maybe a CATBACK if you can afford it, do not add a downpipe or TBE in stage 1)
Stage 2 is next, a downpipe or turboback depending on what you did for 1 along with the stage 2 AP map
Stage 3 involves a turbo swap and usually an IC swap. The real common one is an STI VF39 with STI top mount. You can pick up these parts used here or on E-bay all day long. And again the approproate AP map.


There are MANY other forms of EM out there but most require a much more tech. savy/hands on approach then the AP. While I have no problem with the other forms of EM I dont want to have to lug a laptop with me everywhere I go, nor do I want to return my car to stock to have to pass an OBD emission test.

Sorry for the long winded post, I dont want to see someone pop a motor due to incorrect advice.
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Old 10-20-2006, 02:52 PM   #13
stealthydrew
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ive got an 06 wrx with a headers back exhuast system, and sti top-mount. im using a utek delta as my EM. as the car sits right now im pleased, its making 1/4 mile passes in the 12s. i havent had a chance to dyno it yet, but i would say the hp is in the 310-320 range. also the car is still going rich at the top end.

you do not have to do a turbo upgrade unless you want to, the stock td04 is a decent quick spooling turbo, but lacks in the top end.

as far as em is concerned Cobb AP or Utek are the most populaar piggy back. both are excellect in there own respect. i choose the over the ap becuase i am fortunate enough to know people who can tune a u-tek well.

if you do decide to get a turbo upgrade, get a a wide band O2 sensor.

Last edited by stealthydrew; 10-24-2006 at 07:29 PM.
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Old 10-20-2006, 02:59 PM   #14
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^^ its a uteC...you spent 900+ on engine management, and you con't even know how to spell it :wow: U....T....E...C...

~Jesse

p.s. Pick up an AP, see how you like it. Then get a turboback and flash to stage 2...see how you like it. If you want more top end power, and are willing to sacrifice some low end spool time (and spend a few $$), then go get yourself a turbo. You can do it all in small, relatively inexpensive steps. Good luck. Its fun
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Old 10-20-2006, 08:33 PM   #15
momolicious
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i thought downpipes were bad for 06 wrxs
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Old 10-20-2006, 10:20 PM   #16
bourne
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Originally Posted by momolicious View Post
i thought downpipes were bad for 06 wrxs
Nope. Just make sure that if you get a downpipe that you back it up with proper engine management.
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Old 10-20-2006, 11:40 PM   #17
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Correct
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Old 10-24-2006, 03:46 PM   #18
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HYDRA!!!!!!! but that Engine management system will set you back at least 2800 after install + tune.
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Old 10-24-2006, 04:12 PM   #19
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ask your tuner what to go with. no sense in getting a Cobb AP if theres no pro tuners around
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