Chaos Custom Tuning MPVi4 Transmission Tune File (2017-2019 Duramax L5P 6.6L)
Motor Vehicle Engine Parts
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Cat & DPF race pipe for 2020–2025 Duramax 3.0L GM 1500. Stainless steel, mandrel-bent, off-road only. Boosts power, lowers EGTs, and fits stock muffler.
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Motor Vehicle Engine Parts
Chaos MPVI4 L5P Tune Files deliver better throttle control, strong torque, and smooth drivability for 2017–2019 Duramax trucks.
Motor Vehicle Engine Parts