Exhaust

[XAlliedYouthX]

Okay I'm wondering the size of the exhaust piping. I did a search and didn't get a straight answer. I've also asked people and have been told atleast 4 differant answers from 1.5 to 2.5. Please someone help me out here to finalize it.

[azeniskid]

2.25

[urweak]

i hear 2.25 if the pipe is manderal bent, 2.5 if its crush bent

[jayhawk]

2 1/4" is the right size. If you do some math, you will see the total area and size is increased quite significantly.

[mr_eh]

2.25.... no questions asked, compression or mandrel bent works fine... CRUSHED BENT is bad, dont get that...

and if you havent picked out a muffler yet, i recommend magnaflow, i love mine, everyone who gets in my car while im driving the speed limit at normal rpm says "i thought you had exhaust done?" then i floor it and its got a nice tone behind it... sounds really nice revving it up and going thru the power curve... feels nice too...

[azeniskid]

if you start doing some real mods though, I say 2.5inch

[XAlliedYouthX]

So the stock pipe size is 2.25 then?

[urweak]

oh, maybe we didnt understand you. Are you asking what the stock piping size is?

I think everyone though you were asking what size to upgrade too.

[XAlliedYouthX]

Nope. Wanting to know the STOCK size.

[jayhawk]

Originally posted by XAlliedYouthX
Nope. Wanting to know the STOCK size.

Whoops! :doh: Stock size 2 inches.

[mthegodfather]

2 inch is the stock size and it is crush bent. Very restrictive.

[XAlliedYouthX]

I actually grabbed the tape measure from work today and went under and measured and I came out with 2 inches like you guys said. I already had to modify my muffler order cause I ordered a center/center rather then a offset/center 2.5 so rather then change it AGAIN I think I'll just get the 2.5 and use one of them converter pieces. Then when I have the cash I'm going to get the entire thing to 2.5. :D

[GrandAmChick]

How restrictive is our cat? I'm running a Pacesetter header/downpipe to the stock cat, then to a Borla 2.25 catback.

I know it's bottlenecking at the cat, but is it making that significant of a difference where it should be changed?

[jayhawk]

Yes and no. Catalytic converters CAN be restrictive, but since your car is in not forced induction, the flow would not be all that much better with a high flow cat. If you have high miles on your car, you might as well replace it with a high flow b/c the converter becomes ineffective after XXXXX miles. Until then, I say leave it as it is. :)

[GrandAmChick]

No high miles here.. thanks Jay.