The NPP exhaust felt a decent bit lighter over stock exhaust as well when I installed mine.
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2010 CGM 2SS/RS - L99
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Performance:
Vararam CAI, Vmax Ported Throttle Body, GM Performance Dual Mode Exhaust (NPP), JRE Tune, Hotchkis TVS Stage 2 Track Pack, Vitesse Paddle Shifters, Vitesse Throttle Controller
Functional:
Hex Vents, Elite Catch Can, WeatherTech Digital Fit Mats, Escort Passport Max
Cosmetic:
Heritage Grill, GM Splash Guards, ZL1 Rockers
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