cat

I have a 97 v6 mustang with a force 2 dual catback im looking to get a h-pipe installed or a x pipe as well as some headers,but dont know much in this area...do long tube headers eliminate the cats and what makes a car sound better a hpipe or a x pipe ? any replys will be greatly apreciated...

Hi everyone, I'm new here and I would appreciate some thoughts on my Mustang GT issue. I have a 2008 with the 4.6, 57,000 miles. I still have factory warranty (preowned but Ford certified) as well as an extended warranty thru another company. I have had no issues with her since I bought her...

Disclaimer: This is more of a rant than a question. I bought my 87 LX with a "straight" H pipe on it, no catalytic converters. I was trying to re-install the factory setup with the 4 cats in it so I will have a chance at passing smog. I managed to get all of the bolts out of the H pipe, but...

i want to take out last cat's in each exhaust line on my mustang. its pretty much a stock GT mustang with 2 flowmaster 40's that drop off before the axle.i was wondering if there are going to be any problems after i take them out. like future smog ploblems and stuff like that. any ideas?

Hey guys, I've got a 1999 v6, and I have the duallie exhaust H-pipe adapter with GT takeoff catbacks. I want to get some Mac longtube headers, but I have to meet Ontario emissions standards, so I NEED to have Cats as this is also my daily driver. I'm just wondering if there's a way to have Mac...

i have a pair of long tube headers that go into a resonator (each header) but i want cats and the resonators. so my question: is there enough clearence under the car to have my cats put on??

so im going to install obx long tubes on my 4.0 and the cats are coming out. so i was thinking about installing a high flow cat after the Y connection for several reasons: volume, and so when i go to sell the car i cant tell them the truth that it has a cat, and also so i feel better about...