Celica Forums General Discussion Engine and Performance exhaust piping

i have a tsrm exhaust custom piping. wanted to know which will be better 2 1/2 or 2 1/4 piping

2 1/2

2.5, i have an apexi n1 muffler with a custome 2.5 mandral bent piping

how much does it cost to get an exhaust that is mandral bent and is 3"?

thanks guys i guess ill stay with this 2 1/2 piping

2.35 is really what you want. almost all exhausts for the celica are made this way for best down-low and top-end power.

2.5 exhaust will bog you a little bit down low..but at higher rpm's you'll do better.

if your n/a, you really don't want to go higher than 2.5 at all.

i think down here at honolulu doesnt have that custom piping but ill try ask around

Is it even worth it if your NA to do custom piping? And when you guys say custom piping, do you mean from the cat? From the resonator? Or pure straight pipe from the headers?

TPR uses 2.5 No bog AT ALL

^^ lol on 1 car?

'bog' probably wasnt the right word. 'opportunity loss' would be the economic equivalent

custom piping from the cat is what i have

hey i have an apex n1 too and i was wonderin wht exactly you ddi and if you could sendme a pic thanks!

Reviews from about 7 customers report large low end gains

^^ i'm not gonna say i doubt it, but i am gonna say it's unproven. user bias makes you 'feel' a whole lotta things. put it on a dyno and show me

2.5" exhaust is better than the stock exhaust for 'enthusiast driving' anyway. i'm not sayin your exhaust is bad or anything close to it, but i don't jump on anyones bandwagon without proof or a great reputation for putting out proven products previously).

good luck with everything though, chris