Quote Originally Posted by dallasb84 View Post
ok heres how you do it. start the car and imediately get out and put your face by the muffler close enough to smell the exhaust.... try not to breathe it it your just trying to smell it. stay there a bit until she warms up this is key because your tryin to sniff out with your nose if the cat is working...... then have your buddy wait for the engine to get to operating temperature..... with your face still by the muffler, have him rev it up to around 5 grand a few times full throttle. when hes doing this you need to be there smelling the exhaust..... it works better in a close space like a garage.

this is sometimes called the sniffer test...

what your smelling for is a gas like smell..... deep breaths is the biggest thing...


try it out and tell us how it went ok?
Fuuuck. I passed out....