Quote:
Originally Posted by jc5988
if you have N51, u can try switch to N52 exhaust manifold, it has less dense cell.
other option will be get some 200cell metal cat and pay machine shop cut and weld the manifold. please let us know how it goes if you ever done such thing. CA is a B*tch comes to smog test.
http://www.mil-spec.org/200-cell-cats/ |
Can you provide proof on the N52 having a less dense cell than the N51 in the main cats?