2015.5-2016 Duramax LML

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**DISCLAIMER: Deletes of emissions systems (DPF, EGR, SCR) are for off-road use only. You are responsible for local emissions regulations and road-legal compliance.** Shop premium 2015.5-2016 Duramax LML parts built for power and reliability. Whether you're tuning, deleting, or upgrading your 6.6L diesel, we stock the tuners, delete kits, and hard parts that work. Find your upgrade now. 2015.5-2016 Duramax LML Diesel Parts & Tuning Solutions Your 2015.5-2016 Duramax LML 6.6L needs parts that match its potential. This generation sits at a sweet spot—newer emissions systems mean more tuning headroom, but stock restrictions still hold back horsepower and torque. We carry the exact upgrades diesel owners choose: tuners that delete DPF and EGR systems (diesel particulate filter and exhaust gas recirculation), delete pipes, and supporting hardware. Tuners for Your LML Duramax Start with a quality tuner. EFI Live Autocal V3 and Ez Lynk Auto Agent 3 give you real-time tuning control without a laptop—dial in your power tune, economy tune, or custom setup from your phone or on the dash. H&S Performance Mini Maxx rounds out the options with user-friendly interface and proven results on LML platforms. Each tuner handles DPF and EGR deletes with integrated code management so your truck runs clean diagnostically. DPF & EGR Delete Kits Delete pipes replace restrictive OEM components. Our DPF and CAT delete pipes for the 6.6L LML bolt in directly, drop soot loading to zero, and free up 15-25 hp on their own. Pair with EGR delete to eliminate cooler temperatures and carbon buildup. These are bolt-on confidence builders—no welding, no guessing. Supporting Hard Parts Up-pipes, gaskets, and intercooler piping round out a complete build. Quality gaskets prevent leaks; OEM-spec up-pipes handle turbo boost without cracking. Check our Duramax exhaust collection and Duramax tuning section for complementary upgrades. Your LML is built tough. Give it the parts it deserves. Browse