on a '99 blazer 2dr how many cats are their? i looked at the stock exhaust and saw something the size of a coffee can closest to the engine a cat further back is the one towards the engine a cat or a resinator

guess i prolly should have put this in the exhaust forum lol

The cat should be cylindar shaped and the muffler should be larger and more flat. I'm guessing that the one closest to the engine is the cat because it should hook up right after the downpipe and the muffler should be closer to the rear. I haven't really looked at the stock exhaust but that's my guess. Unless you're running true dual exhaust then you should have two of both.

nah i know that...i looked and starting from the front is something no bigger than a coffee can then the cat then the muff...im woundering if it has two cats or its a resinator

I dunno then...sorry I couldn't help ya out.

can anyone else help a brotha out?

the cat is the one closest to the engine

im all set with what i asked i got it all figured out but thanx for the replies