Duramax Delete Kit Bundles | 2004-2023

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Quick Answers: Duramax Delete Kit Bundles | 2004-2023

  • What is the difference between an LML and LMM delete kit?

    The LMM (2007-2010) predates the SCR/DEF system GM added that with the LML in 201. An LMM delete kit covers EGR and DPF only. An LML kit also addresses the full SCR stack. They are not interchangeable.

  • Does a 2015 Duramax delete kit fit a 2016 Duramax?

    No, even though the truck VIN and your model on your insurance will say 2015 GM made a subtle change to the factory exhaust downpipe where the early model 2015’s have a V-band Clamp style and the 2015.5-2016 have a 3 bolt flange style attached. Best way to check and see what your 2015 Silverado or Sierra is by checking the connection piece on your truck. (To make it easier, turn your wheel to the driver's side and take a look under the truck from the passenger side).

  • What does a 2008 Duramax delete kit include?

    The 2008 Silverado and Sierra ran the LMM Duramax, which used a DPF and EGR system but no SCR or DEF injection that came in 2011. An LMM delete kit covers the EGR cooler bypass or block-off, a full delete exhaust, and a supporting tune. The LMM is a simpler delete than the LML.

  • Will deleting an LML Duramax cause any long-term engine issues?

    Done correctly with a proper tune, an LML delete typically reduces heat load on the engine. The EGR system recirculates hot, soot-laden exhaust gases into the intake removing it lowers intake charge temperatures and reduces piston ring and valve wear. Eliminating DPF regen cycles also removes the fuel dilution that occurs when raw diesel is injected to burn off soot.