2017-2026 GM Duramax 3500/3500 HD Duramax L5P 4" Down Pipe Back w/o Muffler T409 (C6056SLM) 2016duramax Recommend transmission tune to avoid

Recommend transmission tune to avoid premature wear

The descriptions of the tunes to choose from are listed below:

EFI Live License

Step up the driving experience on your 2017

and clearing current and pending DTCs

2017-2026 GM Duramax 3500/3500 HD Duramax L5P 4" Down Pipe Back w/o Muffler T409 (C6056SLM) 2016duramax Recommend transmission tune to avoidIncrease your 2017 2026 Chevy GMC 2500 3500 6. 6L Duramax L5P's fuel efficiency, reduce maintenance expenses, extend engine longevity, and enhance performance with the C6056SLM 4" down pipe back exhaust kit from P1 Race Products. Made from T409 Stainless Steel, this exhaust kit provides exceptional value for your investment. Look to make a statement with this no muffler kit offering maximum flow and performance. Features Made in Canada Direct Bolt on