2007–2010 6.6L Duramax LMM Parts Collection
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Performance parts for 2007–2010 6.6 LMM Duramax engines
This collection includes delete kits, tuners, exhaust systems, up-pipes, and intake components for 2007–2010 Silverado and Sierra 2500HD/3500HD trucks with the GM/Chevy 6.6L LMM Duramax engine.
It includes DPF/DEF/EGR removal hardware, 4″–5″ T-409 exhaust options, EFI Live and Mini Maxx V2 tuners, high-flow up-pipes, and model-specific intakes. These are parts that many truck owners choose for off-road configurations.
LMM Duramax delete kit components for 2007–2010 models
For 2007–2010 6.6L LMM Duramax trucks, the lineup is organized by the components that comprise a complete delete upgrade. Pick a full kit or select an individual component.
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Full Delete Kit – includes DPF delete tuner, 4″ or 5″ T-409 exhaust with optional muffler, DPF/DEF delete pipes, EGR delete hardware, clamps, and model-matched calibration files.
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DPF Delete Pipe – includes a straight T-409 section to replace the factory DPF canister, using OEM hanger locations for a direct bolt-on fit on LMM trucks.
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DPF Delete Exhaust System – includes full 4″ or 5″ T-409 downpipe-back tubing, clamps, and mounting components to replace the factory exhaust path beyond the turbo.
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EGR and Cooler Delete Kit – includes block-off plates, cooler removal components, high-temp gaskets, seals, and installation hardware for the factory EGR valve, cooler, and related plumbing on LMM engines.
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EFI Live and Mini Maxx V2 Tuners – include model-matched delete calibrations, diagnostic functions, data monitoring, and required interface components.
- High-Flow Up-Pipe and Cold Air Intake – include a high-flow up-pipe assembly with installation hardware and an S&B cold air intake with housing, filter options, silicone couplers, clamps, and mounting components.
Why Dieselino components deliver consistent results
Dieselino focuses on durable materials, consistent fitment, and proven DPF delete kits configurations, so your build stays reliable over time. You also get responsive support, warranty coverage, and free shipping on kits across the U.S. and Canada.
- High-grade materials used across kits and supporting hardware.
- Consistent fitment with direct-fit parts and model-specific configurations.
- Proven, ready-to-run setups built around validated component combinations.
- Real technical support from people who know the products and install steps.
- Free kit shipping in the U.S. and Canada, tracking included.
FAQs
As long as it is properly tuned, an LMM DPF delete package on a 6.6L Duramax should be able to support an additional 65-130 HP. As for the rest of the engine, running at lower EGTs, reduced backpressure, and rapid spool times on increased loads will make these benefits possible. The stock injectors and turbo still determine the maximum long-term reliability of the engine components.
Duramax parts used in an LMM delete kit reshape exhaust flow by removing restriction points that would normally push EGTs higher during active regens.
In real use, owners typically see 80–150°F drops at steady highway load, depending on turbo efficiency and pipe diameter. Reduced backpressure also helps limit drive-pressure spikes under towing, which makes the truck more stable on long uphill pulls. It’s intended for off-road and race use only and must be used in accordance with applicable emissions and local regulations.
An EGR delete kit removes the cooler assembly, which stops coolant from circulating through the EGR circuit altogether.
In practice, this helps reduce heat soak in the 6.6 LMM Duramax during sustained load and keeps coolant temperatures more stable by eliminating cooler-related pressure spikes.
A delete tuner adjusts airflow, fueling limits, and timing tables so the engine can operate correctly with the reduced exhaust restriction created by the deleted emissions components.
Common tuning actions include:
- raising the main injection pulse within safe cylinder-pressure boundaries;
- adjusting vane tables to lower drive pressure through the mid-RPM range;
- updating regen logic to prevent any forced regeneration attempts;
- clearing diagnostic codes triggered by missing emissions hardware.
Remember, these calibrations are intended strictly for off-road applications.
With the soot loading components removed, the LMM typically goes through far fewer high-temperature regeneration events. Over a normal service interval, that usually means less measurable oil dilution compared to a regen-heavy setup.
When towing, drive pressure may stay lower than stock, helping keep bearing temperatures more consistent. Engine life still depends on oil-change consistency, cooling system performance, and turbocharger condition.
A delete package for the 6.6L Duramax is not legal for highway or public-road use in the United States or Canada, since compliance with local laws requires keeping all factory emissions systems in place. A LMM Duramax DPF delete configuration is used exclusively for off-road, competition, or closed-course setups where emissions equipment is not required by regulation.