Magnaflow Cat Back- UPDATE, system installed

Burbman. Ask your mechanic IF he really thinks the cat back is worth it. my mechanic, (after I already had one put on by another) that because the pipes coming out of the engine to the cat were no larger. The engine was still pretty restricted, even opening after the cat really didn't do all that much to let air flow thru, and I could have got pretty much the same effect by simply installing a good flow thru muffler.

That I did open the intake did help. remember. If you open the outflow, you got to open the intake to see any gain.