Rotten egg smell means the cat is working, but the engine is running pig rich. Usually smells like that when you floor it multiple times. You must fix your misfire issue before you go wasting money on a downpipe to continue having the exact same problems. Just sayin...
his misfire can be due to a clogged cat.... thats the first thing i would fix. then get plugs wires.
02 GTP with mods 05 GP for DD
Originally Posted by SuperSport
The majority of the people here are potheads who want to buy good condition parts at junkyard prices.