so i have been told that the piping over the axle of the 2.4 is slightly smaller just wondering where i can get the piping over the axle i have a muffler already but i want to replace this as well because i cannot afford to buy a brand new exhaust right now

 

bump

 

It should neck down to 2.25" over the rear axle. And any muffler shop should be able to fab something up like that for you.

 

ok thank you i am having it done this week then

 

I had a custom exhaust made a year ago. My pipeing is 2.5" all the way back. If your going to do that and if your planning to lower your car, lower the car before you get an exhaust made or it will rub

 

o ok thanks i am buying springs on friday so i should probably wait then thanks for the tip

 

OTTP/CTI sells a 2.5" over axle replacement. It's mandrel bent and ready to be installed.

 

what ius the website so i can take a look at them?

 

http://www.ottperformance.com/store/...-backs-c54.htm

 

Does anybody think it be worth it to just buy the 2.5 piping and then keep your stock muffler on. Would I see any hp gain if I did this instead of doing both the muffler and the 2.5 inch piping.

 

i honestly dont think so i was going to do this but now just going to buy a full exhaust for an extra $250 and get some actual noticable gains

 

i was told the gain from going cat back on NA engines are not noticeable anyways

 

When all i had modded was just an intake and exhaust, u could tell a little difference in the seat of your pants but big difference was gas mileage. I got 5mpg better with just and intake and catback. But then i did others mods and lost my mileage.

 

Yeah but for 95 bucks you'll probably still gain about 3-4 whp so for that price it isn't a bad deal in my eyes. I'm gunna order it this week i think and when i get it installed i'll tell you guys if I noticed a difference and if it changes the tone of my muffler.

 

I rode in a G5 GT with a full 2.5 slp catback and a k&n intake no other mods. Compared to my car with custom intake, CA V2 header, LSJ downpipe, he has all top end power and no low end. I have all low end power and no top end.

please do I'm very curious cause i want to get the ottp over axel pipe

 

wish someone could do a dyno run of before and after over axle piping

 

I'm sure someone has somewhere on this forum.

 

Yeah i just ordered it yesterday so i'll definetly let you guys know how it feels and plus do a vid. I actually just thought of something else yesterday, I was thinking of buying a ss/tc muffler and see if that would make any difference to.

 

i'm pretty sure it's the same muffler as ours cause i know we have the ss/sc muffler but if not then i stand corrected

 

Update:::

The part came in the mail today, so once installed i'll do a vid and let you guys know if theres any difference in performance.

 

I fit a 3" turbo back all the way to the back of the car over the axel no problem. lowered on sport lines. No cat just a magnaflow 3" muffler.

 

You sir are correct... I put a custom Cat-back on mine and only noticed a slight gain on top end... I noticed that the motor revs quicker...

 

So I got the over the axel pipe installed today. Not sure when i'm going to get chance to do a vid but it should be soon whenever i get a chance to borrow my friends cam corder. Overall performance wise I noticed a slight difference in top end power and low end feels about the same or slightly better. There was also no difference in sound volume or tone due to the piping only going up slightly from 2.25 to 2.5. I will more than likely do a muffler swap down the road when I get the cash. Overall I'd say it was worth it for the price and the top end increase.

 

videos yet?

 

nope not yet i think i'm gunna wait until i get my muffler then do a before and after video.