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Sorry if this has already been covered. If I have straight pipes(no mufflers) it's my impression that I can't do the road course due to sound? Thanks
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2014 LS3/M6, SS4NFC, GPI Heads, Ported Rod/Mod Intake, LTH, PTB, UDP, CAI, 3.91, LSA Injectors and Fuel Pump, E85, Tuned by GPI 532rwhp/473ft-lbs tq. 11.37 1/4 Mile @ 124 MPH, Member of the SBE Killaz, Founder of the River Valley Camaro Club. IG @ARCamaro5
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