HF cat, flowmaster 40 series mufflers, 2.5 inch down pipe unlike the videos 3inch. And a PLOG. Would the 2.5inch and 3 inch make that much of a difference? and where can i get HF cats at a good price?
Grand Prix GTP Exhaust - YouTube
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HF cat, flowmaster 40 series mufflers, 2.5 inch down pipe unlike the videos 3inch. And a PLOG. Would the 2.5inch and 3 inch make that much of a difference? and where can i get HF cats at a good price?
Grand Prix GTP Exhaust - YouTube
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