
- FASS Silencing Technology (FST): This exclusive technology incorporates radius cuts, tighter tolerances, and a military-spec coating to create the quietest fuel air separation system available.
- Performance Radius Cuts (PRC): Unlike competitors who use restrictive, sharp-angled fittings, FASS uses advanced machining to create smooth-flowing cuts within the housing. This prevents the reintroduction of air and vapor while ensuring optimal fuel flow.
- Mass Flow Return (MFR) Technology: This system constantly polishes your fuel by returning unused fuel, after it has been filtered, back to the tank. This ensures you always have the cleanest fuel possible for peak performance.
- Bolt-On Brackets: Installation is simplified with durable, machined steel brackets that mount to the factory bed bolts, eliminating the need for any drilling or welding.
- No-Drop Fuel Tank Sump: The included sump kit features a single-bolt design that provides a dedicated reservoir of fuel at the bottom of the tank, maximizing fuel range and ensuring a consistent supply, even when fuel levels are low.

When it comes to the heart of your truck’s performance, clean fuel is non-negotiable. The FASS NDTSC10165G No-Drop Kit Titanium Series 165GPH Fuel System & Sump is not just an upgrade; it's a complete overhaul for your 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM. This system is engineered to be the most reliable and high-performing aftermarket filtration system on the market. Rated at 165 gallons per hour, it provides advanced 3-micron filtration and a patented air/vapor removal process that effectively extends the life of your costly injection pump and injectors. Designed for trucks with 600-900HP, this system also improves cold weather starts and increases efficiency. FASS makes installation a breeze with their No-Drop Kits, which include the revolutionary FASS Fuel Sump, eliminating the need to drop your fuel tank for installation.
FASS Silencing Technology (FST): This exclusive technology incorporates radius cuts, tighter tolerances, and a military-spec coating to create the quietest fuel air separation system available.
Performance Radius Cuts (PRC): Unlike competitors who use restrictive, sharp-angled fittings, FASS uses advanced machining to cre[...]
- FASS Silencing Technology (FST): This exclusive technology incorporates radius cuts, tighter tolerances, and a military-spec coating to create the quietest fuel air separation system available.
- Performance Radius Cuts (PRC): Unlike competitors who use restrictive, sharp-angled fittings, FASS uses advanced machining to create smooth-flowing cuts within the housing. This prevents the reintroduction of air and vapor while ensuring optimal fuel flow.
- Mass Flow Return (MFR) Technology: This system constantly polishes your fuel by returning unused fuel, after it has been filtered, back to the tank. This ensures you always have the cleanest fuel possible for peak performance.
- Bolt-On Brackets: Installation is simplified with durable, machined steel brackets that mount to the factory bed bolts, eliminating the need for any drilling or welding.
- No-Drop Fuel Tank Sump: The included sump kit features a single-bolt design that provides a dedicated reservoir of fuel at the bottom of the tank, maximizing fuel range and ensuring a consistent supply, even when fuel levels are low.