exaust size?

[chris_240sx]

is a 2.5 inch DIA. exaust too small for a close to stock ca18det? thanks

[Jezz_s13]

stock is 2.25, i'm running 322@fly with 2.25 (but not std exhaust).

There's a guy running 437@fly with 2.5" just down the road from me.

Im running std manifold with the 2.25 exhaust and it's badly restricting it, mainly the manifold as 330 really is the limit, but I'm sure the exhaust isn't helping at all.

[chris_240sx]

So a 2.5 should be ok? just making sure, the most the engine will have is an intake and rebuilt turbo....thanks

[biosehnsucht]

I'm hoping to get away with my IIRC 60mm HKS Sport exhaust I have, which is ~2.3x" if I recall the size correctly.. should be more than enough for 250-300 or so tops

[Looneybomber]

my motorcycle has 2.5" (roughly) exhaust, and its only a 1liter. Why not get bigger exhaust for your car? say 2.75"

[nab911]

2.5 isnt too small to support that much power because it wont like tear anything up but if you get 3" it will give you a lot more power... i really want the HKS GT spec or something like that because its 3.75