Sinister Diesel Complete Blue Package – 6.6L Duramax LML
Fits 2011–2016 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD
Key Features
• The ultimate all-in-one Sinister Blue upgrade kit for the 6.6L Duramax LML
• Addresses common factory weak points for improved reliability and performance
• Enhances airflow, cooling, and fuel delivery for better throttle response and towing capability
• All components finished in Sinister Blue powder coat for a clean, cohesive engine bay
• 100% bolt-on installation using factory mounting points—no cutting or fabrication required
• Designed for daily drivers, work trucks, and performance builds alike
Product Overview
Take your 2011–2016 Duramax LML to the next level with the Sinister Diesel Complete Blue Package—a comprehensive upgrade system engineered for power, reliability, and style.
This kit replaces failure-prone factory components with precision-engineered Sinister Diesel parts built from high-grade aluminum and mandrel-bent tubing.
Together, they deliver cooler intake temps, improved flow, stronger construction, and a signature look under the hood.
From filtration and charge air to coolant management, every component is designed to work in harmony—improving efficiency and durability while giving your truck the refined, unified look of Sinister Blue perfection. Ideal for anyone who wants the best combination of performance, reliability, and visual appeal in a single, easy-to-install package.
What’s Included
• Cold Air Intake (SD-CAI-LML-13) – High-flow reusable filter and smooth mandrel-bent tubing for maximum airflow and throttle response.
• Coolant Filtration System (SD-LMLCF11) – Removes contaminants and debris to extend the life of your cooling system and EGR cooler.
• Intake Bridge & Hot-Side Charge Pipe Kit (SD-INTRPIPE-LML-HOT-IE) – Mandrel-bent aluminum with heavy-duty boots for improved boost response and durability.
• CAT Fuel Filter Adapter (SD-CAT-DMAX) – Allows use of CAT 1R-0750 filter for superior fuel filtration and protection.
• Coolant Reservoir / Degas Tank (SD-DEGAS-LML-13) – TIG-welded all-aluminum tank replaces the factory plastic version for superior strength.
• Radiator Pipe (SD-RADTUBE-DMAX-11) – Replaces failure-prone plastic pipe with durable aluminum construction for long-lasting reliability.
• Fuel Cap (SD-FC-FUEL-U) – Precision-machined billet aluminum with O-ring seal to keep your fuel system clean and secure.
• Coolant Block-Off Plate (SD-CBO-DMAX-01) – CNC-machined billet plate to eliminate unnecessary coolant ports for a clean, leak-free setup.
• Coolant Reservoir / Degas Cap (SD-DC-DMAX-01) – Billet aluminum cap with pressure relief—adds style and durability to your cooling system.
• Intake Resonator Cover Plate (SD-RSNTRD-LML) – Deletes the factory resonator for a cleaner look and improved airflow appearance under the hood.
Vehicle Fitment
• 2011–2016 Chevrolet Silverado 2500HD / 3500HD
• 2011–2016 GMC Sierra 2500HD / 3500HD
• 6.6L Duramax LML Diesel engine
Frequently Asked Questions (FAQs)
Q: Can I buy these parts separately?
A: Yes, each component is available individually, but this package provides the best value and ensures full compatibility across all systems.
Q: Will this work with stock tuning?
A: Absolutely. Each part is designed to work seamlessly with factory tuning while still delivering noticeable performance and reliability gains.
Q: Are all components finished in Sinister Blue?
A: Yes, every component in this kit is powder-coated in our signature Sinister Blue for a clean, unified engine bay appearance.
Q: Do I need any modifications to install this kit?
A: No modifications are required. Everything bolts directly into factory locations using standard hardware and hand tools.
Q: How long does installation typically take?
A: Most customers complete the full kit over a weekend with basic tools and mechanical experience.
