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  1. Exhaust Tech
    The original owner I purchased my G8 GT from had magnaflow axle backs installed. I liked the sound but wanted it louder and more aggressive so I took the stock mufflers included in the sale and made a homemade set of Loudmouths (I will be purchasing j pipes to take care of the drone). However...
  2. MarylandSpeed.com
    This question is mainly directed at Maryland Speed, but if others can contribute due to direct knowledge, I'd love to hear it. Back when I had my last car (2001 Grand Prix) I bought the SLP "GTX" catback exhaust system. It came with SLP's "trapezoidal" tips, and they really looked good on the...
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