Couple questions....how big a difference will it be if I ran 2.5" piping vs. 3" at 10 psi??

What exhaust is the quietest exhuast out there?? I really like the RSR exmag in flat black to keep it looking stock but it is only 2.5" should that be ok still???

Car 92 EG hatch!!

Daily driven so I don't want it too loud along with living in CA.

Post pictures of your exhaust too would be nice....

Thanks.

 

It's a big difference between 2.5 and 3" piping, upgrade to the 3", and get it from kteller.com, they have bolt on kits, or you could save money by buying the piping and doing it your self. You need a 14"-18" resonator, piping(i'm not sure which car you have, but most likely 2x90's, 2x45's, 4ft of 3'), universal 3" muffler, and 3" cat is necessary. I would'nt worry about the cat until later.