Exhausts

[Melon]

Anybpdy know what is a good universal backbox. By good i mean performance and noise.

 

[Wang]

Dont think there is such a thing as a backbox that gives performance, restriction is all the way down the pipe straight to the head so full system inc manifold is required for any gains, which even then, without other breathing mods such as flowed ports, better induction etc would be pretty minimal.