If the cat stinks when you step on the gas then it is working. It is when they get old and you get on the gas that the catalytic converters don't stink as bad because the efficiency drops off over time.

warmonger

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black