GTP Backfire

Asked by GTPCoupe99 Dec 28, 2016 at 02:13 PM about the 1999 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

Question type: Car Customization

I have a supercharged 3.8v6 and how would I make
my exhaust backfire?

2 Answers

Your Answer:

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    munron
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    James Sparrow
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