Daytripper540

How many cats did the 01 mustang have? I just looked under mine and saw only one on each side...but I think I read that 01's are supposed to have four?

...I thought it was a little loud on cold startups..

defconfire

I think it has two on the bottom and two closer to the headers.

Xemeth

Two are up right behing the manifolds. You can't really see them without being under the car.

Daytripper540

Oh okay, that makes sense. Thanks guys.

v6stang07

u prob have them all, no one in there right mind would remove the two hardest cats they would remove the big ones that u are seein

FBCBEER

True, and if they were removing 2, why not remove all 4? Its illegal whether you have 2 or none.

Matt's 95 Stang

how many does an 95 have? Is it 4 or 2? Please say to I live in Cali and cant cut them out and I want to replace my stock ones with Pypes High Flow mini cats and at $70 apeace 2 would be alot better than 4....

Thanks,
Matt

Sparks232

Well technically we only have 2 cats... the front 2 are what they call "pre cats" and dont really do too much, so removing the rear cats will allow more air flow through the system, as opposed to taking the front 2 cats off.
of course call me out if im just an idiot

Derf00

actually you are correct. The pre-cats simply help to super heat the already hot exhaust gases so the primary cats can do their job. They don't do a whole lot but they do get the process started.

Kind of like saliva helps to start the digestion process when you eat. By itself it doesn't do much but it starts the whole process that takes place mainly in your stomach.

Sparks232

so derf.....in light of that last comment, do you think it would sound decent with MAC mufflers, and their catback system, for me to take out the rear cats, with MIL eliminators and run divorced pipes? or do you think i should do a crossover pipe. ive heard that with MAC mufflers it doesnt sound too hot without cats