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They sound amazing without any other mods, but if you're going to do headers it'll be too loud. Get something a little quieter if you plan on having another person in the car. It's already a little tricky to have a conversation doing 75 down the highway, provided my passenger is softspoken
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2010 1SS M6
10.58 @ 129
790/689
D1 Procharger
Blower Cam
Long Tubes
Alky Control Meth
Tuning by Shane Hinds
Built by STG Motorsports
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