Quote Originally Posted by BTEC
yeah i had one and left it under the hood of a customers car. lol!!!
But B u can take it to them and see if they can tell if its bad or not. temp should be hotter after (coming out) the cat than before (going in). If its clogged, itll be substantially hotter on the inlet side and cooler on the exit side. Good luck

alright coo, thanks, well heres another piece of info i forgot to disclose, alot of carbon minoxide has been commin out ( more then usual) and when i was testing out my rev i noticed alot of black stuff on the ground that looks like it came from my muffler ( not oil, i checked, it wasnt that thick)