Quik

i thought with GM OBDII was ion 96. either way your fine

klown

the obdII comp is in the 96 and up i believe.

SCstanger

I remember the day I canned the stock H-pipe in favor of a cat-less X pipe...The sound difference alone left me smilin wider than Micheal Jackson at a boy scout jamboree ..heh

P.S.I.cho

yes if u take off your cats in the mustang's your check engine light will come on atlest mine did, the cat has a tube coming off it that runs up to your vaccume lines and it recirculates unburned fuel and air and what not for emissions (this is how your car passes emissions) when you pull the cats off your TAD sensors (thermactic air deverter) isnt recieving and air or fuel, so it throws on your check engine light and youll run like **** at a constant rpm, to fix this eliminate your emissions stuff and plug the vaccume lines and viola check engine lights gone and u gain 10hp!

this is from personal experience with my 95 gt maybe some cars are diffrent i dunno

wafrodon

The pipe that goes to your cats is hooked up to the air pump which blows into the cats to keep the cats from getting clogged as far as I know. If you take that off all that will happen is the air pump with blow to atmosphere. The only reason you should get a check engine light is if you have 4 o2 sensors two in front and two behind the cats. I'm not sure when they started doing that on mustangs but mine only has 2 in front so there was no problem.

vfast

thier not really 4 cats..to are what ya called heaters

crazyhorse

i put several off road h-pipes with o2 bosses , on5.0 mustangs i simpley screwed o 2 in , hooked them up and NO CHECK ENGINE LIGHT EVER CAME ON MINE, so some may be different. this is very simple & any one could do it . just try. good luck.

Quik

yea ive never heard anything like that before with any OBDI car at all

and that tube isnt a vaccum tube.

JoHnNy sAvAgE

Alright so I'm definatley gettin the o/r h-pipe... What brand do you guys reccomend??? I I don't want to get stuck not being able to get the o/r one in after taking off the stock one. I've looked at BBK they products are usually pretty good, What about pace setter?? For some reason I always thought they products were kind of generic am I wrong?? What brand are you guys runnin?

Quik

pacesetter is kinda cheap. some love mac some like bbk some like bassani. i would go with a bbk pipe. its a good product