Im running a straight-through 2-1/4" (57mm) exhaust system
i am considering fitting a complete manifold to tailpipe 2-1/2" (63.5mm) exhaust system
Will i get more power?
i already have a 2-1/2" (63mm) decat (heatwrapped) but this connects to a 57mm downpipe (also heatwrapped)
the weld on the...