It appears the sea foam sprayed in the intake while running has fixed the low efficiency cat codes I was getting on both banks of my wife�s Mystique. It has gone through almost 2 tanks of gas with no codes. They were usually popping up after about 60 miles before. Thanks CEG.

Green 2000 SVT #1166 mods-K&N and Custom heat shield, optimized y pipe, Magnaflow center resonator, DMDhttp://www.geocities.com/savinoss/Cars.html -Wifes car 99 Mystique V6 5 spd