Manifold Or Not

[jimakos205 0]

hello what do you think to change the original manifold with some 4-2-1 but with the standard exhaust on my cti ??worth the case or not?? my engine is a normal 1.9 gti cat a part from a k&n airfilter in the oem box...

Edited May 26, 2014 by jimakos205

[Simes 248 2 Cars]

Don't bother.

[jimakos205 0]

thanks...do you remember the exhaust diameter i also need to change the cat ??