Page 1 of 1
4g15 exhaust size?
Posted: April 29th, 2013, 10:52 pm
by Ted_v2
What's the largest exhaust piping I can install on a 4g15 dohc? I'm getting a steal of a deal on a 2.5 piping with a n1 exhaust. Now I was thinking it's too big but maybe just maybe it would work no?
Re: 4g15 exhaust size?
Posted: May 1st, 2013, 10:23 pm
by dutyspeed
i think 2.5 is lil bit 2big especially for a stock motor.i'd recommend u use 2''
the 2.5'' may cause u to burn more gas as well as lose power low down
Re: 4g15 exhaust size?
Posted: May 1st, 2013, 11:32 pm
by Ted_v2
Owch. Really looking to make some power
Re: 4g15 exhaust size?
Posted: May 2nd, 2013, 8:01 am
by Dave
if manual, maybe 2.25" but auto nothing bigger than 2"
general rule of thumb, less than 200hp, 2" is all you need
Re: 4g15 exhaust size?
Posted: May 2nd, 2013, 9:12 am
by Ted_v2
Well I'll keep my stock piping. I was getting a deal on a exhaust system frm a 2nr but I won't bother anymore.