2.3l 2008

ec_dago_ryder · #1 12-26-2009, 12:17 PM

isnt the exhaust size stock 2.25" then everyone goes up to 2.5"

STL · #2 12-26-2009, 01:05 PM

Yes stock size is 2.25
some people go up in size but you don't have to

ec_dago_ryder · #3 12-26-2009, 11:02 PM

yah im trying to find an exhaust adapter for 2.25" to 3" but i cant find em dude. i called napa auto zone checkers pep boys its annoying

ec_dago_ryder · #4 12-30-2009, 10:40 PM

ahhh god dammit. lol i feel like such a douche i went and measured the opening i didnt realize that the tip kinda flares out. then this guy was like its 1 3/4 i argued with him. later on i saw and i was like oh dam haha. so now after the cat ima have them put on 2" tubing

Johnbaum13 · #5 12-31-2009, 12:16 AM

Stock size on mine was 2.5 through the cat, then necked down to 1.75 through the muffler and out the back. I upgraded to 2.5 all the way out.

4bangerranger · #6 12-31-2009, 10:41 AM

also your truck will be louder if cut the resonator off too while your running your exhaust.

Johnbaum13 · #7 12-31-2009, 11:28 AM

what resonator?

Didn't have one on mine.

Jp7 · #8 12-31-2009, 12:14 PM

Quote:

Originally Posted by ec_dago_ryder

yah im trying to find an exhaust adapter for 2.25" to 3" ........

You trying to slow your exhaust down and lower your torque?

ec_dago_ryder · #9 12-31-2009, 02:10 PM

Quote:

Originally Posted by Jp7

You trying to slow your exhaust down and lower your torque?

its because i got a 3" opening into my muffler. so wahts i was gonna do is adapt to 3" right before the muffler. then just dump it out the back.

ec_dago_ryder · #10 12-31-2009, 02:15 PM

Quote:

Originally Posted by Johnbaum13

Stock size on mine was 2.5 through the cat, then necked down to 1.75 through the muffler and out the back. I upgraded to 2.5 all the way out.

when you do this will you still get the right amount of back pressure? and do you get more torque?

one more thing im dumping my exhaust after the muffler should i adapt to 2.5 then dump it? or just dump it with 3" tubing?

Jp7 · #11 12-31-2009, 02:24 PM

Quote:

Originally Posted by ec_dago_ryder

when you do this will you still get the right amount of back pressure? and do you get more torque?

one more thing im dumping my exhaust after the muffler should i adapt to 2.5 then dump it? or just dump it with 3" tubing?

You don't want any backpressure, but you want to keep the exhaust moving fast. You get one with the other.

Johnbaum13 · #12 01-02-2010, 07:42 PM

And you don't want to "dump it". You need about 18" minimum behind the muffler to smooth out the air flow before it exits the pipe, otherwise you just have turbulence and the air slows, killing power. I wouldn't go bigger than 2.5", but if you go bigger, I see no reason to neck it back down. Just be aware that while you might gain a tiny little bit on the top, that size pipe is gonna cost you big time down low.

4bangerranger · #13 01-05-2010, 04:31 PM

well what year is yours??? 05, i have an 02 and i had one. its round and its about 8 inches from the muffler (in front of it)

Johnbaum13 · #14 01-05-2010, 11:09 PM

Yep, mine didn't have one, but they started dropping things in the later years, don't know when that was phased out, since I didn't have it. I would guess '04, since thats when alot of other things were changed. I was just curious, since I didn't have one, and the OP has an '08, which I know doesn't have one.

ec_dago_ryder · #15 01-06-2010, 07:53 PM

i juss got that shit done today. i got it dumped and it dont go no 18" back. sounds pretty good its loud. n i dont think i lost any power or anything.