Custom 2.5" Exhaust

[PaulMP3]

you have anyclearance issue with your exhaust? you feel 2.5 is suffucant?

Anybody do b4 after dynos?

 

[Kooldino]

Kool, I hate to bring this up, but you live in Jersey. No, I know the state is the armpit of america , I was referring here to the smog test. What are you going to do about that?

Hopefully engine management combined with the high flow cat I have will get me bye!

 

[Kooldino]

you have anyclearance issue with your exhaust? you feel 2.5 is suffucant?

Anybody do b4 after dynos?

Yeah, 2.5" should be good for 300hp.

 

[mikesmazda155]

Not to start an argument, just asking a question. Does the 3" exhaust make the car more responsive than a 2.5" exhaust?

 

[perfworks]

Not to start an argument, just asking a question. Does the 3" exhaust make the car more responsive than a 2.5" exhaust?

only after considerable spool up

 

[mikesmazda155]

Cool thanx

 

[serpentkilla1]

What about 21/4 vs 2.5, is there a big diff if any as far as performance?

 

[Kooldino]

I'd think you'd get a slightly quicker spool with 2.5 over 2.25, and a little more (MAYBE 5whp?) up high with 2.5".

 

[perfworks]

I'd think you'd get a slightly quicker spool with 2.5 over 2.25, and a little more (MAYBE 5whp?) up high with 2.5".

yup sounds about right

 

[mikesmazda155]

Yeah, I always heard that it makes it more responsive, and maybe alittle more horsepower, but not much. But the people that say this were running the 3" exhaust running 15 psi.

 

[serpentkilla1]

Damn:mad: i went with 2.25 cuz the guy said it would bend easier with less kinks cuz he did not have a manderal machine.

 

[1sty]

Kool, how much did the cat, muffler and tip set you back?
PM me if you like .

 

[MemphisRacer]

Kooldino, correct me if im wrong, but you have one high flow cat with the rear o2 in it, is that the front o2 zip tied outside of the exhaust with foil on it? could you explain this?