|
89 crx hf exhaust
Presently I'm getting 42 to 44 MPG city driving. I need to replace the old exhaust system . I am thinking about aftermarket headers and a stainless steel exhaust the rest of the way back. Will this improve or hurt my economy? Also what size tube for the exhaust. Or do I need to keep everything stock including the HF exhaust manifold/catalytic converter?
|