T-roy

Is my stock 2 inch exhaust with a test pipe replacing the cat, resonator in place and stock muffler be alright for 7 psi boost on a stock B18B1?


I plan on getting a new muffler down the road...

Jared

no

civperc

If by alright, you mean "won't cause any problems", then yeah, it should be alright. However, you'll be restricting flow, which will result in a loss of power and a prolonged spool. With a turbo Honda the best exhaust is no exhaust, so the bigger (diameter), the better. A common route taken by many, is installing a 3" exhaust system. It's not ridiculously loud, and flows enough to free up some extra ponies (as opposed to 2 or 2.5" piping).