[Girl n-a Lude]

im going to go custom piping 2.5" for an exhaust, but ran into an excellent price for a muffler that is for 3". how do you think it would fare for a jrsc prelude running 9lb? any consequences between running a 2.5 and a 3" (for 9lb, not 6lb). thnkx

 

[bkw97lude]

A 3" exhaust w/ JRSC would be loud enough to wake the dead. I don't think a 3" would gain any more than a 2.5" at 9psi. When you get into double digit boost numbers, a 3" becomes more useful.

 

[sharkcohen]

I would think that if your piping is 2.5" that a 3" muffler wouldn't affect performance much, although it might be louder.

 

[Girl n-a Lude]

would there be any big problem mating a 3" muffler to 2.5" piping?

 

[anubyss]

No, the shop should be able to pick up a 3" to 2.5" reducer for it.