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gt500 exhaust

  1. GT500 exhaust on 3.7?

    2011 - 2014 V6 Mustang Tech
    Anyone out there with stock GT or GT500 exhaust on your 3.7, did you notice any performance changes? good or bad? Any ideas for where to add the GT/GT500 exhaust to make performance gains? Also, has anyone had issues or a bad experience with this swap?

  2. GT500 Mufflers Creating Unwanted Noise

    2011 - 2014 Mustang GT Tech
    I have noticed a clunking type noise coming from the passenger side where the muffler sits. This happens when going over bumps in the road. I just spent an hour or so under the car to see what is going on. It looks as if the muffler is hitting the body of the car. I first started by unbolting...

  3. Clip of my 2011 5.0 on the dyno.

    2011-2014 Mustang Talk
    YouTube - 2011 Mustang 5.0 on dyno I think the GT500 axle backs sound at WOT. First time I've heard them from outside of the car. Stock with no tune Airaid CAI, GT500 axlebacks, 3.55 rear end, 6 speed MT-82, dynoed in 5th gear (topping out at 6500 rpm due to 146 mph speed limiter. Redline...
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