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View Poll Results: exhaust
HKS 11 18.64%
Apex 3 5.08%
neither 12 20.34%
other 33 55.93%
Voters: 59. You may not vote on this poll

 
 
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Old 08-11-2003, 08:40 PM   #1
4 banger
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Default best exhaust for the STI?

I'm looking to purchase a new exhaust but I can't decide if I should get the HKS carbon back or the Apex N1 GT-spec, so guys help me out if you could with some feedback on which one would give me the most power.

Thanks
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Old 08-11-2003, 10:08 PM   #2
peczenij
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You should really add TurboXS to the list as they have a large market share...
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Old 08-11-2003, 10:15 PM   #3
pitbul09
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im going to use a turbo xs steath back with a jdm sti muffler
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Old 08-12-2003, 02:58 AM   #4
SlickmisterN
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Default

TurboXS Turbo-back for me
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Old 08-12-2003, 04:01 AM   #5
mauahah
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slickmisterN how does the Turbo back turboXs sound?? and how do you think it helps the power of the car??
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Old 08-12-2003, 05:06 AM   #6
dsmperformance
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Not many choices...
What about Invidia, Blitz, Cobb, TurboXS, ScoobySport, Greddy, etc.?
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Old 08-12-2003, 02:25 PM   #7
LimeyWRX
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you just know the scoobysport will sound awesome and give some great torque gains
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Old 08-12-2003, 02:41 PM   #8
spool1536
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TXS
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Old 08-12-2003, 02:43 PM   #9
WorldOne
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Exhaust Choices for the STI:

Downpipes:

Invidia
Perrin
HKS
Turbo XS and cat back connector

Catbacks:

HKS Carbon Ti
HKS Hi Power
Apexi GT
Inividia
Blitz Nur Spec
Greddy EVO

Turbo Backs:

Inividia
Turbo XS
Scooby Sport

Mufflers:

TXS version I
TXS version II
Blitz Nur Spec Axle Back
Scooby Sport
Stromung
Prodrive

Please reference this thread if you have any questions:

http://forums.nasioc.com/forums/show...hreadid=399922

Here is a video we made of the turbo xs system:

www.worldoneperformance.com/media/rfltilarge.mp4

Cheers,

Garret
World One
[email protected]
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Old 08-12-2003, 05:32 PM   #10
Leonardo
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I was installing a HKS Carbon-Ti cat back and a HKS drop in filter from but since I want no bullcrap from my mon-unfriendly dealer, I'm just getting a rear section (STi Genome as it has more flow than the SPT counterpart) and an STi drop in filter.

that's it!

If STi makes it, I'm ok. I love my warranty when I have it!

But if I decide to void my warranty, HKS!

If you are going to install the GReddy, remember that it starts at 2.5 before oppening up and that would be a bottleneck when installing an aftermarket downpipe. GReddy is fine if you leave the stock DP.



Leo
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Old 08-12-2003, 05:56 PM   #11
T-WRX Racer
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I have the HKS carbon Ti Sounds perfect, not to much not too little just right.

I wouldn't get the full TXS exhaust, (or at least not the muffler) I hate the way it sounds.
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Old 08-13-2003, 02:53 AM   #12
PA04STI
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Godspeed has his downpipe and uppipe.
There is also Fujitsubo & Kakimito cat back exhausts.
Also there is JIC Magic for exhausts.
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Old 08-13-2003, 09:04 AM   #13
T-WRX Racer
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Don't get me wrong here, I know scooby sport makes quality products, but is it just me, or does the scooby sport muffler look homemade? They just are not a quality looking piece on the car. Sure, its shinny, but that isn't enough, is it?
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Old 08-13-2003, 09:15 AM   #14
wrx what
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I will post a video/audio clip later, but do not hesitate, TurboXS RFL-Ti is the way to go!!
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Old 08-13-2003, 09:52 AM   #15
BHodges3
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ROFL! Just got done watching the WorldOnePerformance video of the TXS setup. I was thinking that it looked pretty sweet... until it shows the inside of the car "No Highway Drone" and you see that the check engine light is on. What is up with that? I don't care what I have to buy... I want max power (if that means catless so be it), NO CEL, and no residue/scorch marks/discolorations on my rear bumper. Any suggestions based on those requirements?
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Old 08-13-2003, 02:57 PM   #16
gtguy
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Quote:
Originally posted by BHodges3
ROFL! Just got done watching the WorldOnePerformance video of the TXS setup. I was thinking that it looked pretty sweet... until it shows the inside of the car "No Highway Drone" and you see that the check engine light is on. What is up with that? I don't care what I have to buy... I want max power (if that means catless so be it), NO CEL, and no residue/scorch marks/discolorations on my rear bumper. Any suggestions based on those requirements?
The stock one. Seriously. Subaru put a lot of thought into the STi and its power delivery, including finding the correct compromise of noise, smoothness, torque, etc. It's like the WRX. Having tried a few exhausts, the best one to my tastes as far as everyday driveability was the stock one. Sure, aftermarket stuff (Cobb, Prodrive) let you pull a little longer after 5,500 rpm, but realistically, how often are you in that rev range in any gear except 1st and 2nd? The punch and tranquility of the stock setup is excellent.

I rather imagine that the STi will be the same.

Kevin
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Old 08-13-2003, 05:55 PM   #17
WorldOne
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If you want maximum power, catless is the only way to go. Any catless exhaust system will cause a check engine light. :-)

This is why the car in the video has a check engine light.

Thank you for your inquiry.

Cheers,
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Old 08-13-2003, 09:52 PM   #18
JDM nut
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For me, an aftermarket exhaust have to be made out of Titanium. There are only a few things you can do to a car to take weight off it, so I am going to take full advantage of it. I know Titanium exhaust cost a little more, but the way I see it, I am upgrading the car here, I am spending unnecessary money to make the car cooler, so why not buy the coolest product out there? If I want to save money, I would just leave it stock, that is the most money saving!

As far as I know, full titanium exhaust are available from the following companies:

JIC
Fujitsubo
Cusco
ARC

I don't know who makes the best pipe and can yet.........

Last edited by JDM nut; 08-13-2003 at 09:57 PM.
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Old 08-13-2003, 10:08 PM   #19
ushtang
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Default

According to www.godspeedinc.com,
their downpipe does not cause any CEL's.
Can anyone confirm this?

Quote:
Originally posted by WorldOne
If you want maximum power, catless is the only way to go. Any catless exhaust system will cause a check engine light. :-)

This is why the car in the video has a check engine light.

Thank you for your inquiry.

Cheers,
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Old 08-13-2003, 10:17 PM   #20
Beldrueger
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Default

Yeah .. awfully limited set of choices. ... you couldn't come up with more than 2 options?

JIC 505S ti/ti exhaust on the way for me

Looked at the Fujitsubo Super Ti and Kakimoto GT 1.0z

forgive me if I didn't get the names perfect.

I'm with JDM nut. no compromises. I get the best part I can .. or no part at all.

there are a lot of JDM downpipes available that require JDM exhausts .. like Cusco, Zero Sports ... etc.

I have not picked a downpipe yet.
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Old 08-13-2003, 10:41 PM   #21
happasaiyan
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Quote:
Originally posted by ushtang
According to www.godspeedinc.com,
their downpipe does not cause any CEL's.
Can anyone confirm this?

yes.
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Old 08-14-2003, 10:38 AM   #22
Leonardo
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Quote:
Originally posted by ushtang
According to www.godspeedinc.com,
their downpipe does not cause any CEL's.
Can anyone confirm this?


Another happy Godspeed DP owner in the rex and no dreaded CE light.
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Old 08-14-2003, 11:16 AM   #23
dsmperformance
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Quote:
Originally posted by WorldOne
If you want maximum power, catless is the only way to go. Any catless exhaust system will cause a check engine light. :-)

This is why the car in the video has a check engine light.

Thank you for your inquiry.

Cheers,
What downpipe are you running?
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Old 08-14-2003, 03:34 PM   #24
essogas
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Quote:
Originally posted by gtguy


The stock one. Seriously. Subaru put a lot of thought into the STi and its power delivery, including finding the correct compromise of noise, smoothness, torque, etc. It's like the WRX. Having tried a few exhausts, the best one to my tastes as far as everyday driveability was the stock one. Sure, aftermarket stuff (Cobb, Prodrive) let you pull a little longer after 5,500 rpm, but realistically, how often are you in that rev range in any gear except 1st and 2nd? The punch and tranquility of the stock setup is excellent.

I rather imagine that the STi will be the same.

Kevin
I wish more people listened to your advice. Wh o knows what effects the aftermarket stuff wil have... Check engine light? Give me a break! What if you don't like it. I think I need to here from people that have actually made the jump instead of speculating.
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Old 08-14-2003, 06:10 PM   #25
happasaiyan
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Default

Quote:
Originally posted by essogas


I wish more people listened to your advice. Wh o knows what effects the aftermarket stuff wil have... Check engine light? Give me a break! What if you don't like it. I think I need to here from people that have actually made the jump instead of speculating.
i have the godspeed downpipe with the greddy evo exhaust. (which i have posted about 934726 times already). it is VERY quiet when cruising around town, but sounds awesome when you open it up. it also throws you back and can catch you by surprise when boost hits. this setup does NOT set off the CEL, and this is without a hack or some kind of eliminator. no speculation here. just facts.
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