H hawaii3 Member : Mazda, Mazdaspeed 3 Jun 15, 2008 #1 what kind of gain will i be looking at if i put in a SU Test pipe and a cat back exhaust. im leaving the stock downpipe because fear of seals going. i also have a fujita CAI and HKS BOV.
what kind of gain will i be looking at if i put in a SU Test pipe and a cat back exhaust. im leaving the stock downpipe because fear of seals going. i also have a fujita CAI and HKS BOV.
W wisniaPl Member Jun 15, 2008 #3 hawaii3 said: bump Click to expand... search...btw with test pipe you will get like 15 hp....cbe wont give you nice soound thats all....
hawaii3 said: bump Click to expand... search...btw with test pipe you will get like 15 hp....cbe wont give you nice soound thats all....