Trucktok 2015.5-2016 6.6L Duramax LML 4" DP-Back DPF delete Pipe & EGR/CCV Delete Kit

FITMENT

• 2015.5-2016 6.6L Silverado & Sierra Duramax 2500HD/3500HD LML engine models with the 3-bolt flange.
  
• Does NOT Fit 2011-2015.5 model with the V-Band Clamp style. 
• Please physically inspect underneath truck to verify your turbo discharge style before purchasing!

DESCRIPTION

Product Overview

• The factory 6.6L Duramax LML engines is designed for emissions compliance, but the DPF system can create additional exhaust restriction and increase heat management demands under heavy load. At the same time, the factory EGR system recirculates exhaust gases back into the intake system, which can contribute to soot and carbon buildup over time.
  
• The LML 4" DPF Delete Pipe & EGR Delete Package combines a race pipe with EGR delete components. helps improve exhaust flow efficiency, reduce system restriction, and simplify the factory emissions configuration for off-road and competition applications where permitted.

Key Features

• Massive Exhaust: Replaces the factory exhaust system from the DP back with smooth 4" pipe—delivering maximum exhaust flow, lowest possible EGTs, and a deep, aggressive diesel tone.
• Reduces EGTs & Ends Active Regens: Replaces the heavy, restrictive DPF canister with a smooth 4" straight pipe to eliminate primary exhaust backpressure and stop fuel-draining regenerations.
• Dual-Source Intake Protection: Removes EGR soot and reroutes CCV oil mist away from the engine—stopping carbon sludge buildup and keepin turbo, intercooler, and intake tract dry and claen.
• Saves Maximum Labor & Shop Costs: Installing all three systems at once avoids duplicate teardown shop labor around the tight rear engine compartment and chassis.

FAQ

Q: What are the benefits of the 4" Downpipe back exhaust?

A: The 4" DP-ack exhaust replaces the restrictive factory emissions components to improve exhaust flow, reduce exhaust restriction, and help lower heat buildup under heavy-duty driving conditions.

Q: What is the purpose of the CCV/PCV reroute kit?

A: The CCV/PCV reroute system helps prevent oil vapor and contaminants from being introduced back into the intake system, helping maintain a cleaner intake tract.

Q: Can this kit improve towing performance?

A: By reducing exhaust restriction and improving airflow efficiency, this kit can help support better exhaust flow during towing and heavy-load driving applications.

Q: Is this kit difficult to install?

A: Installation difficulty depends on vehicle condition and experience level. Professional installation is recommended, especially for removing factory emissions components and installing the EGR cooler delete parts.

Q: Will this fit cab & chassis models?

A: This kit is designed for standard GM Silverado HD and Sierra HD pickup trucks. Cab & chassis models may require additional modifications and should be verified before purchase.