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  1. 3800 experts please

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    hey 3800pro fans my name is Chris and I'm new to the 3800 series engines, I have a 4dr 99 Grand Prix GTP and I wanted to upgrade a little but keep it a family car that has balls, I seen a zzp performance kit stage 1 one that I want to get but I need help on making my whine louder and my car just...
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