FASS Titanium Signature Series 220GPH Fuel System for GMC/Chevrolet 2020-2023 Duramax 6.6L (TSC15250F220G)

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Please Note: This Fuel System REQUIRES aftermarket tuning to be compatible with this vehicle.

If you drive a 2020-2023 GMC/Chevrolet with the Duramax diesel engine, upgrading your fuel filtration and delivery WILL TRIPLE the life of the injection system, increase MPG & power, provide exceptional extreme cold weather operation and more.

That’s exactly why we engineered the Titanium Signature Series Fuel System, to outlast and outperform anything else on the market. This Fuel System is designed to provide the purest possible fuel to your Duramax and built to outlast it.

Without proper fuel filtration, diesel injection systems are prone to excessive wear that can cost thousands. The Titanium Signature Series removes over 99% of the water from your fuel along with air, vapor, and debris down to 2 microns absolute, delivering clean, conditioned fuel to your engine at a consistent pressure.

Peace of Mind, Efficiency, Power

• Supports Stock & Modified Duramax: Plenty of fuel for stock and modified GMC/Chevrolet trucks.
• Injector Protection: WILL TRIPLE the life of your fuel injection system.
• FASS Filtration: Optimizes combustion, restores horsepower, and maximizes MPG.
• Limited Lifetime Warranty: Register your FASS system, and you’re covered.

Advanced Filtration Technology

FASS doesn’t just move fuel, we filter it better than anyone:

• Water Separation: Extreme Water Separation Technology, 3rd-party proven to eliminate over 99% of free and emulsified water.
• Air/Vapor Removal: Patented process eliminates entrained air/vapor that damages injection systems and reduces power/efficiency.
• 2 Micron Absolute Filtration - Microglass: Removes debris smaller than OEM filters can catch.
• Mass Flow Return (MFR): Constantly “polishes” your diesel by sending unused fuel back through the filters, so your tank always holds clean, conditioned fuel.

Key Benefits:

• Improves Reliability: WILL TRIPLE the injection system life
• Maximized Horsepower: Stronger throttle response, improved fuel atomization, restored injection timing, resulting in a much more balanced engine
• Optimized MPG: More efficient and complete combustion
• Peace of Mind: The Extreme Water Separator acts as a fail-safe in cases of extreme fuel contamination. If it reaches capacity it acts as a dam and shuts down fuel flow, preventing thousands of dollars in repairs, not to mention down time
• Cold Weather Confidence: Reliable starts and operation in harsh climates, especially when coupled with the appropriate FASS Fuel Heater
• Proven Reliability: FASS Fuel Systems have less than a .5% failure rate
• Cleaner Operation: Improved fuel quality and combustion reduces DPF regens and soot output
• Improves Fuel Lubricity: At least 10% improvement by removing entrained air/vapor
• Lower Cost of Ownership: Reduced maintenance and fewer injection-system repairs

Key Features:

• Fuel Flow: 220 GPH, supports modified 6.6L Duramax from 700 HP up to 900 HP
• 2 Micron Absolute Filtration Rating: Captures finer debris than OEM filters
• Removes over 99% of free and emulsified water from fuel (3rd party verified)
• Patented FASS air/vapor removal process
• Increases fuel lubricity by at least 10%
• WILL TRIPLE the life of fuel injection components
• 1,000,000+ mile motor life
• 30,000-mile filter life expectancy
• Limited Lifetime Warranty (with registration)
• Optional Electric Fuel Heater Kits Available
• Mass Flow Return (MFR): Continuously “polishes” fuel for maximum cleanliness
• Whisper Technology: Industry’s quietest motor
• Performance Radius Cuts (PRC): Smoother internal fuel flow, no sharp restrictions
• Heavy-duty bolt-on steel mounting brackets

Why Choose FASS?

See more here at Why FASS or review our craftsmanship standards at FASS Craftsmanship

At FASS, we don’t rush products to market, we “Strive for perfection & settle for excellence”. That’s why our systems have a failure rate of less than .5%, and why diesel owners across the country trust us to protect their investments. Whether you’re daily driving your Duramax-powered GMC/Chevrolet or building horsepower, the FASS Titanium Signature Series Fuel System gives you peace of mind and performance you can feel. Register your system with FASS to activate the limited lifetime warranty.

• Compatible With: 2020-2023 GMC/Chevrolet Duramax 6.6L
• Part Number: TSC15250F220G
• Flow Rating: 220 GPH, 700 to 900 HP. True flow rating on diesel fuel at operational pressure, not like our competitors’ exaggerated flow numbers on thinner fluids at 0 PSI.
• Warranty: Limited Lifetime (with registration)

Vehicle Fitment by Year

• 2020 Chevrolet Silverado 2500HD – 6.6L Duramax L5P
• 2020 Chevrolet Silverado 3500HD – 6.6L Duramax L5P
• 2020 GMC Sierra 2500HD – 6.6L Duramax L5P
• 2020 GMC Sierra 3500HD – 6.6L Duramax L5P
• 2021 Chevrolet Silverado 2500HD – 6.6L Duramax L5P
• 2021 Chevrolet Silverado 3500HD – 6.6L Duramax L5P
• 2021 GMC Sierra 2500HD – 6.6L Duramax L5P
• 2021 GMC Sierra 3500HD – 6.6L Duramax L5P
• 2022 Chevrolet Silverado 2500HD – 6.6L Duramax L5P
• 2022 Chevrolet Silverado 3500HD – 6.6L Duramax L5P
• 2022 GMC Sierra 2500HD – 6.6L Duramax L5P
• 2022 GMC Sierra 3500HD – 6.6L Duramax L5P
• 2023 Chevrolet Silverado 2500HD – 6.6L Duramax L5P
• 2023 Chevrolet Silverado 3500HD – 6.6L Duramax L5P
• 2023 GMC Sierra 2500HD – 6.6L Duramax L5P
• 2023 GMC Sierra 3500HD – 6.6L Duramax L5P

Weight	28 lbs
Dimensions	18 × 14 × 28 in