FITMENT
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2007.5-2010 6.6L GMC Sierra 2500 3500 HD LMM Duramax Diesel.
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2007.5-2010 6.6L Chevrolet Silverado 2500 3500 HD LMM Duramax Diesel.
DESCRIPTION
Product Overview
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2007.5–2010 6.6L LMM trucks deliver strong towing performance. However, factory emissions components—including the DPF, EGR valve/cooler, and CCV system—can restrict airflow, increase exhaust heat, and contribute to soot and oil buildup over time.
- The LMM 5" All-in-One Package combines a Mini Maxx V2 tuner, 5" Dp-back exhaust, high-flow EGR delete kit with intake, and CCV reroute kit into one complete solution. Designed to improve exhaust flow, reduce intake contamination, and enhance throttle response for modified LMM Duramax applications.
Key Features
- High-Flow 5" Exhaust System: Replaces restrictive factory DPF exhaust components with mandrel-bent 5" piping and OEM-style hangers for improved airflow and easy installation.
- EGR Delete with High-Flow Intake: Removes the factory EGR cooler and upgrades restrictive intake components to support cleaner airflow into the engine.
- CCV Reroute System: Redirects crankcase vapors away from the intake tract, helping reduce oil contamination in turbo and intercooler components.
- Improved Performance & Efficiency: Reduces factory airflow restrictions, improves throttle response, and supports better towing performance for modified LMM Duramax applications.
- Pre-Loaded Mini Maxx V2 Tuner: Includes pre-configured tuning support for modified configurations, helping manage related diagnostics and optimize engine parameters after hardware upgrades.
FAQ
Q: What is the difference between the 4" and 5" LMM Duramax exhaust kits?
A: The 4" system provides an excellent balance of airflow, performance, and daily drivability. The 5" system offers greater airflow capacity, a deeper exhaust tone, and is better suited for heavy towing or higher-power Duramax builds.
Q: Is the 5" exhaust louder than the 4" system?
A: Yes. The 5" exhaust produces a deeper and more aggressive diesel tone with increased exhaust volume, while maintaining efficient exhaust flow for demanding applications.
Q: Does the 5" exhaust replace the entire factory exhaust system?
A: Yes. The downpipe-back 5" exhaust system replaces the restrictive factory DPF exhaust section and routes exhaust from the downpipe connection to the rear of the truck.
Q: Does this kit include everything needed for a complete LMM upgrade?
A: Yes. The package includes the Mini Maxx V2 tuner, 5" DPF delete exhaust system, EGR delete kit, and CCV reroute system. Additional supplies such as coolant or installation tools may be required.
Q: Can the Mini Maxx V2 tuner read codes and monitor engine data?
A: Yes. The tuner can read and clear compatible OBDII trouble codes and function as a digital gauge monitor, displaying available parameters such as EGT, boost pressure, coolant temperature, and transmission temperature.
