For those with a 3sgte, Whats is your exhaust setup? Options

[Baddica95]

My car is jussssttt about done...i wanna get my exhuast done before i take it to the body shop. I wanna change the piping and the muffler. What are you guys running....thanks

Ryan

[quicknstyle]

My car is jussssttt about done...i wanna get my exhuast done before i take it to the body shop. I wanna change the piping and the muffler. What are you guys running....thanks

Ryan

i think most of the guys are running custom 3in pipes

[lagos]

full 3in, mandrel bent, with a magnaflow muff.

[Insanity-74]

XS downpipe with a 2.5" Mongoose system

3" system is a bit of overkill and is unnecesssary unless you plan to run huge power...2.5" will keep everything running sweet, and is alot less likely to allow boost creep.....its also cheaper.

[Baddica95]

wheres a good place to pick up a muffler....

[lagos]

ebay

XS downpipe with a 2.5" Mongoose system

3" system is a bit of overkill and is unnecesssary unless you plan to run huge power...2.5" will keep everything running sweet, and is alot less likely to allow boost creep.....its also cheaper.

3in is not at all overkill for a turbo car. the bigger your exhaust, the faster your tubo will spool up and the more power youll make. but i do agree that a 2.5in will help with any boost creep issues, and would also be an ok choice.

[Baddica95]

would the greddy sp cat back exhaust system be a good choice...or is that not recommended for turbos...im not sure the pipe size..

[easternpiro1]

im sorry, but what is boost creep exactly and what causes it?

[cheeco]

2.5in custom stainless DP back, muffler and submuffler both magnaflows, stock DP.

[beno]

boost creep is when the cars boost goes higher than the computer setting.

What can be done to stop boost creep with a 3" exhaust system? a bigger waste gate?

This post has been edited by beno: Sep 11, 2006 - 12:16 AM

[Insanity-74]

The waste gate is used to divert exhaust gases away from the turbo when the turbo has reached it pre set boost level, Boost creep is caused when the waste gate can no longer cope with bypassing the exhaust gases and they continue to go through the turbo, making it spin faster and faster, building up more and more boost.

Larger diameter exhausts make this situation worse as they allow more exhaust gases to flow.....a narrow diameter exhaust restricts the flow of exhaust gases helping prevent boost creep.

Hope that makes sence

[easternpiro1]

is there a certain boost level that this would be bad on? i plan to have mine set to 14-16psi daily

[lagos]

is there a certain boost level that this would be bad on? i plan to have mine set to 14-16psi daily

the basic idea is... youll set it at 16psi, but then as the rpms rise you might notice that you hit 18psi because the boost creeped up there.

[easternpiro1]

oh i see, still learning...

[CilverSeliST205]

would the greddy sp cat back exhaust system be a good choice...or is that not recommended for turbos...im not sure the pipe size..

I have that on my swap, sp catback and 3" dp make 3sgte sound real nice and deep, but I'm not keeping it, as far as performance save up for full 2.5 or 3"

[lagos]

would the greddy sp cat back exhaust system be a good choice...or is that not recommended for turbos...im not sure the pipe size..

I have that on my swap, sp catback and 3" dp make 3sgte sound real nice and deep, but I'm not keeping it, as far as performance save up for full 2.5 or 3"

i also had the greddy sp on my swap for over a year. while it works fine, and the car is still quick, i noticed a big gain going to a full 3in exhaust.

[Baddica95]

so i just have to find a muffler then with a 3 inch inner pipe and take it to a shop and say that i want a custom exhaust with 3" all the way....or something like that...I never had to deal with exhaust before.

[lagos]

so i just have to find a muffler then with a 3 inch inner pipe and take it to a shop and say that i want a custom exhaust with 3" all the way....or something like that...I never had to deal with exhaust before.

yeah, just call around to a few places and see what shop can do that type of work

[Baddica95]

alright..well lastly...whats a good muffler as far as sound wise...i want something with a nice deep tone to it...not too obnoxious...

[teamchancery]

would the greddy sp cat back exhaust system be a good choice...or is that not recommended for turbos...im not sure the pipe size..

I have that on my swap, sp catback and 3" dp make 3sgte sound real nice and deep, but I'm not keeping it, as far as performance save up for full 2.5 or 3"

i also had the greddy sp on my swap for over a year. while it works fine, and the car is still quick, i noticed a big gain going to a full 3in exhaust.

what kind of gains does a full 3 inch exhaust give with no(gutted)cat