2015.5-2016 GM Duramax 2500/3500 4" Down Pipe Back with Muffler (C6045P) exhaust +260 ft-lbs torque

+260 ft-lbs torque

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4L F250 / F350 / F450

+ 120 ft-lbs torque

2015.5-2016 GM Duramax 2500/3500 4" Down Pipe Back with Muffler (C6045P) exhaust +260 ft-lbs torqueIncrease your 2015. 5 2016 Chevy GMC 2500 3500 6. 6L Duramax's fuel efficiency, reduce maintenance expenses, extend engine longevity, and enhance performance with the C6045P 4" down pipe back exhaust kit from P1 Race Products. Made from cost effective aluminized steel, this exhaust kit provides exceptional value for your investment. Experience optimal sound quality via the included high performance muffler that deliver a strong presence when you need