2007–2010 6.6L Duramax LMM Parts Collection
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Performance parts for 2007–2010 6.6 LMM Duramax engines
This collection covers 2007-2010 Chevy Silverado and GMC Sierra 2500HD/3500HD pickup trucks with the 6.6L LMM Duramax engine. LMM predates DEF, no DEF system to remove.
|
Feature |
2007–2010 |
|
Engine Version |
6.6L Duramax LMM |
|
Supported Models |
Silverado/Sierra 2500HD/3500HD Pickup |
|
Tuner Options |
EFI Live AutoCal V3, H&S Mini Maxx V1, Mini Maxx V2 |
|
Unlock / ECM |
No ECM unlock required H&S Mini Maxx V1 & Mini Maxx V2: Preloaded and ready to install. EFI Live: VIN & vehicle data required. |
|
SOTF Support |
SOTF available: Mini Maxx V2, EFI Live AutoCal V3 No SOTF: H&S Mini Maxx V1 |
|
EGR Delete Kit |
Available in Full Delete Kits or as a standalone kit |
|
DEF System |
Not equipped from factory |
|
Exhaust Options |
4" exhaust system, Muffler / No Muffler optional |
|
Air/Fuel Upgrades |
S&B intake, FASS fuel system, up-pipes, intercooler upgrades |
The lineup includes DPF and EGR removal hardware, 4″ T-409 stainless downpipe-back exhaust (with optional muffler), EFI Live AutoCal V3, H&S Mini Maxx V1, and Mini Maxx V2 tuners, a high-flow up-pipe, S&B cold air intake, and a FASS Titanium Signature fuel system.
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 Kits - bundle options: with EFI Live AutoCal V3 or with H&S Mini Maxx V1/V2. Each kit includes a 4″ T-409 stainless exhaust (~2mm wall) with optional muffler, EGR valve and cooler delete kit, and mounting hardware. Pickup fitment only, does not fit Cab & Chassis.
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Exhaust System - 4″ T-409 stainless steel downpipe-back system (~2mm wall). Available with or without muffler, and with or without an up-pipe selectable at checkout. Replaces the factory DPF and exhaust path beyond the turbo.
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EGR & Cooler Delete Kit - EGR delete plates, cooler delete hardware, gaskets, seals, clamps, and 8mm mounting hardware. Fits 2007-2010 Silverado/Sierra 2500HD and 3500HD. Sold standalone or included in a full kit.
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DPF delete tuners - Mini Maxx V2 (plug-and-play, SOTF via OBD-II), EFI Live AutoCal V3 (custom ECM calibration with SOTF, Stock/+65/+100/+130HP), and H&S Mini Maxx V1 (plug-and-play, no SOTF). Both handle LMM DPF delete tuning, no ECM unlock required. Standalone tuners extend to Cab & Chassis with dual fuel tanks; EFI Live for C&C runs a single tune, and single-tank C&C is not supported.
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Air & Fuel upgrades - S&B Cold Air Intake (high-flow filter, replaces factory airbox) and FASS Titanium Signature Fuel System (higher flow rate and cleaner fuel delivery, protects the injection system from contamination).
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Charge-air & exhaust flow - replacement Up-Pipe High Flo (passenger side, fits 2001-2016) for improved manifold-to-turbo flow, and Hot Side Intercooler Pipe (fits 2001-2010) for more consistent boost pressure between the turbo and intercooler.
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.