Engine Upgrades
Fleece Replacement Sensor Connector With Pigtail (FPE-HAR-MU-PT-1) for 2001-2022 Duramax LB7 / LLY / LBZ / LMM / LML / L5P
The Fleece Replacement Sensor Connector With Pigtail (FPE-HAR-MU-PT-1) is a durable, OEM-style replacement part for 2001–2022 GM Duramax diesel engines. Designed to replace damaged or worn sensor connectors, it ensures reliable electrical connections and easy installation. Ideal for maintenance or repairs, it offers a long-lasting, cost-effective solution for restoring sensor function in LB7, LLY, LBZ, LMM, LML, and L5P engine models.
ARP Harmonic Damper Bolt Kit (129-2503)
The World Leader in Fastener Technology released the Harmonic Damper Bolt kit for the Chevrolet 6.6L Duramax applications. The kit is manufactured from premium grade chrome moly steel with a Black Oxide finish.
Mishimoto Water Temperature Sensor Adapter – 32mm (MMWHS-32-BK)
The Mishimoto Water Temperature Sensor Adapter 32mm (MMWHS-32-BK) is a high-quality and versatile component that allows for easy installation of aftermarket water temperature sensors in a variety of vehicles. This adapter is designed to fit onto a 32mm coolant hose and provides a secure and leak-free connection for the sensor.
S&B Velocity Stack 4″ Green (77-3006)
The S&B Velocity Stack 4″ Green (77-3006) is a high-performance aftermarket air intake component designed to improve the overall performance of your vehicle. It is specifically designed to fit onto S&B cold air intakes, but can also be used with other compatible intake systems.
AEM 150 PSIg Brass Sensor Kit (30-2131-150) 1/8 in. NPT Male Thread
The AEM 150 PSIg Brass Sensor Kit (30-2131-150) is a reliable and versatile pressure sensor kit that is designed to accurately measure up to 150 pounds per square inch gauge (PSIg) of pressure. The sensor body is made of durable brass material, ensuring its longevity and resistance to corrosion. With a 1/8 inch NPT male thread, this sensor can easily be installed in a variety of applications. The kit includes a 150 PSIg brass sensor connector and pins, making it a complete package for immediate use. Whether you need to monitor the pressure in your car’s engine or in an industrial setting, this sensor kit is a great choice for its accuracy and durability.
BD Diesel Screamer Turbo (1045830) for 2011-2016 Duramax LML
The BD Diesel Screamer Turbo (1045830) is a high-performance, drop-in replacement turbocharger for 2011–2016 GM Duramax LML 6.6L engines. It boosts airflow and power without requiring exhaust or intake modifications, offering improved throttle response and reduced EGTs while maintaining stock-like drivability. Designed for towing, daily driving, or performance use, it’s a durable and efficient upgrade for enhanced performance and reliability.
Fleece Freedom Series Duramax Cylinder Head – Driver Side (FPE-61-10004-D) for 2011-2016 Duramax LML
The Fleece Freedom Series Duramax Cylinder Head – Driver Side (FPE-61-10004-D) is a high-performance upgrade for 2011–2016 GM trucks with Duramax LML engines. Built for durability and improved cooling, it features stronger castings, precision machining, and enhanced coolant flow. Designed as a factory-fit replacement, it comes fully assembled and ready to install, making it ideal for both daily drivers and high-performance builds.
BD Diesel Turbo Adapter Manifold Flange (1044106) for T4-T3 Adapter Flange – All Diesel Truck Apps
The BD Diesel Turbo Adapter Manifold Flange (1044106) is a durable, high-performance adapter that enables the installation of a T4 turbocharger onto a T3 exhaust manifold. Designed for reliability and minimal exhaust leakage, it allows for turbo upgrades without replacing the entire manifold, making it ideal for diesel performance enthusiasts and custom setups.
BD Diesel Constant Tension Hose Clamp 3.5in High Torque (1405212) Universal
The BD Diesel Constant Tension Hose Clamp 3.5in High Torque (1405212) is a durable, spring-loaded clamp designed for high-boost, high-temperature applications. It automatically adjusts to hose expansion and contraction, ensuring a consistent seal. Ideal for turbocharger systems and intercooler piping, its high-torque design prevents leaks and hose blow-offs, making it a reliable choice for performance-focused diesel engines.
BD Diesel Turbo Intake Horn (1045630) for 2017-2022 Duramax L5P
The BD Diesel Turbo Intake Horn (1045630) is a high-performance upgrade for 2017–2022 GM Duramax L5P 6.6L diesel engines. Made from cast aluminum, it replaces the restrictive stock intake to improve airflow, reduce turbulence, and enhance turbo response. This results in better throttle response and potential horsepower gains. It’s a direct bolt-on part requiring no modifications and works well with other performance upgrades like tuning, exhaust, and intercooler systems.
BD Diesel Constant Tension Hose Clamp 2.59in-2.94in High Torque (1405208) Universal
The BD Diesel Constant Tension Hose Clamp (1405208) is a durable, high-torque clamp designed for secure hose connections in high-performance diesel and heavy-duty automotive systems. With an adjustable diameter of 2.59 to 2.94 inches, it maintains consistent pressure despite temperature changes, reducing leaks and enhancing performance.
BD Diesel Turbo Blanket (1453523) for T6 S400 / S500 Turbos
The BD Diesel Turbo Blanket (1453523) is a high-performance thermal insulation product designed for T6 S400 and S500 turbochargers. It retains heat within the turbo to improve efficiency and spool-up times while reducing under-hood temperatures. Made from heat-resistant materials, it protects surrounding engine components and enhances reliability, making it ideal for high-performance and heavy-duty diesel applications.
Fleece Replacement Fuel Injector Connector With Pigtail – 4 Pack (FPE-HAR-L5P-INJ-PT-4P) for 2011-2025 Duramax LML / L5P
The Fleece Replacement Fuel Injector Connector with Pigtail – 4 Pack (FPE-HAR-L5P-INJ-PT-4P) is an aftermarket kit designed for 2011–2025 GM Duramax diesel engines (LML and L5P models). It includes four durable, OEM-style connectors with six-inch pigtails, ideal for replacing damaged or corroded factory connectors. Built with automotive-grade materials, these connectors ensure reliable fuel injector performance and are suited for both repairs and performance upgrades in demanding diesel environments.
BD Diesel Cool Down Timer Kit v2.0 (1081160) for 1994-2005 Cummins 5.9L, 1994-2018 Powerstroke 7.3L/6.0L/6.4L/6.7L w/o Push button start & 2001-2014 Duramax 6.6L
Turbochargers run at high temperatures and need to cool down properly to prevent damage. The Cool Down Timer (CDT) keeps the engine idling after shutdown to maintain oil flow to the turbocharger, preventing overheating and coking of the bearings. This helps avoid premature wear and ensures proper lubrication. The CDT can be set for up to 5 minutes of idle time or can shut down based on exhaust temperature using a K-Type EGT probe.
Fleece T4 Pedestal Spacer – 1.5″ Thick (FPE-T4PED-SPACER1.5) for T4 Turbos
The Fleece T4 Pedestal Spacer – 1.5″ Thick (FPE-T4PED-SPACER1.5) is a durable, precision-made spacer that raises T4 turbochargers 1.5 inches to provide extra clearance for custom piping, better airflow, and component clearance. Designed for high-performance diesel and racing applications, it ensures a secure, leak-free fit and is compatible with various T4 turbo setups, offering enhanced installation flexibility.
BD Diesel Constant Tension Hose Clamp 4in High Torque (1405213) Universal
The BD Diesel Constant Tension Hose Clamp 4in High Torque (1405213) is a durable, stainless steel clamp designed for heavy-duty diesel applications. It maintains a secure, leak-free seal under extreme temperatures and pressure by automatically adjusting to hose compression. Ideal for turbochargers and intercoolers, it offers high-torque performance and corrosion resistance, making it suitable for both upgrades and maintenance.
Fleece Freedom Series Duramax Cylinder Head – Passenger Side (FPE-61-10004-P) for 2011-2016 Duramax LML
The Fleece Freedom Series Duramax Cylinder Head – Passenger Side (FPE-61-10004-P) is a high-performance replacement for 2011–2016 GM 6.6L Duramax LML engines. Built with premium materials to exceed OEM standards, it offers enhanced durability, improved airflow, superior sealing, and supports higher boost levels. Ideal for both stock and modified engines, it optimizes performance, reduces emissions, and delivers the reliability expected from Fleece Performance Engineering.
