
- FASS Silencing Technology (FST): By using radius cuts, tighter tolerances, and a military-grade coating, this system is specifically designed to reduce pump noise, ensuring a quiet and smooth operation.
- Performance Radius Cuts (PRC): Unlike competing systems that use restrictive, sharp-angled fittings, FASS uses advanced machining to create smooth, flowing cuts. This prevents the reintroduction of air and vapor back into the fuel, ensuring optimal flow.
- Mass Flow Return (MFR) Technology: This system continuously "polishes" your fuel by returning unused fuel to the tank after it's been filtered. This ensures that your engine is always running on the freshest, cleanest fuel possible.
- Simple & Secure Mounting: The included bolt-on brackets utilize your factory bed bolts, making installation quick and easy without any drilling or welding.
- No-Drop Fuel Tank Sump: The extra-deep sump features a single-bolt design for a hassle-free installation. It provides a dedicated reservoir of fuel at the bottom of the tank, preventing issues when you're low on fuel and ensuring a consistent supply.

Protecting your truck's sensitive fuel system is the key to longevity and performance, and the FASS NDTSC11100G No-Drop Kit Titanium Series 100GPH Fuel System & Sump is the ultimate solution for your 2011–2014 GM 6.6L Duramax LML. This isn't just a simple filter; it's a meticulously engineered system designed to be the most reliable and high-performing on the market. Rated at 100 gallons per hour, it offers advanced filtration that removes over 99% of water, air, and vapor, and filters out debris down to an impressive 3 microns. This process not only protects your costly injection pump and injectors but also improves cold weather starts, enhances efficiency, and restores a smooth idle. The revolutionary FASS Fuel Sump, included in this kit, makes installation easier than ever before by eliminating the need to drop your fuel tank.
FASS Silencing Technology (FST): By using radius cuts, tighter tolerances, and a military-grade coating, this system is specifically designed to reduce pump noise, ensuring a quiet and smooth operation.
Performance Radius Cuts (PRC): Unlike competing systems that use restrictive, sharp-angled fittings, FASS uses advanced mac[...]
- FASS Silencing Technology (FST): By using radius cuts, tighter tolerances, and a military-grade coating, this system is specifically designed to reduce pump noise, ensuring a quiet and smooth operation.
- Performance Radius Cuts (PRC): Unlike competing systems that use restrictive, sharp-angled fittings, FASS uses advanced machining to create smooth, flowing cuts. This prevents the reintroduction of air and vapor back into the fuel, ensuring optimal flow.
- Mass Flow Return (MFR) Technology: This system continuously "polishes" your fuel by returning unused fuel to the tank after it's been filtered. This ensures that your engine is always running on the freshest, cleanest fuel possible.
- Simple & Secure Mounting: The included bolt-on brackets utilize your factory bed bolts, making installation quick and easy without any drilling or welding.
- No-Drop Fuel Tank Sump: The extra-deep sump features a single-bolt design for a hassle-free installation. It provides a dedicated reservoir of fuel at the bottom of the tank, preventing issues when you're low on fuel and ensuring a consistent supply.