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  1. 2011-2014 Mustang Talk
    I was wondering if I could use the cats from a 2015+ mustang gt onto my 2011 gt and pass smog. My car currently doesn’t pass smog in California and was wondering if the 2015+ will work for smog. I will have them welded if need be.
  2. New Member Introductions | No Tech Questions
    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...
  3. 2005-2010 Mustang GT Tech
    I have stainless steel headers and h-pipe with no catalytic converters. It's inspection time and I want to pass with no problems. I want to put the catalytic converters after the h-pipe because I will be getting rid of it for a turbo system. I also think it will be much easier to install in the...
  4. 5.0L Tech
    My 5.0 is having some problems. Yesterday I drove it for about 3 hours straight and it ran perfectly fine the whole time. I got home and the car sat for about an hour, then I started it up and took off to get some dinner. The car ran fine still. Then, upon leaving the restaurant, I started my...
  5. V6 Tech
    I just bought a mac catback exhaust for my 3.8 and I want it to have some flow. I live in california and i just bought a '98 gt with the pre-cats removed. Will a muffler shop remove my pre-cats? will the police ream me if they pull me over? Thanks!! -Ben
  6. 4.6L Tech
    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?
1-6 of 7 Results