Peace of Mind, Efficiency, Power

• Supports Stock & Modified Duramax: Plenty of fuel for stock and modified GMC/Chevrolet.
• Injector Protection: Will triple the life of your injectors and injection pump.
• FASS Filtration: Optimizes combustion, restores HP, maximizing MPG (results vary).
• 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: 3rd‑party proven to eliminate over 99% of water.
• Air/Vapor Removal: Eliminates entrained air and vapor that damage injection systems and reduce 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: Triples injection system life
• Maximized Horsepower: Stronger throttle response, improved fuel atomization, restored injection timing—your engine becomes much more balanced.
• Optimized MPG: More efficient/complete combustion (results will vary).
• Peace of Mind: The Extreme Water Separator acts as a fail‑safe in cases of extreme fuel contamination, preventing thousands of dollars in repairs and downtime.
• Extreme Cold Weather Confidence: Dependable starts and operation in extreme cold climates—especially when coupled with the appropriate FASS Fuel Heater.
• Proven Reliability: FASS Fuel Systems have less than a 0.5% failure rate.
• Cleaner Operation: Improved fuel quality and combustion reduces DPF regens and soot output.

Key Features

Why Choose FASS?

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 0.5%, 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 No‑Drop Titanium Signature Series Fuel System gives you peace of mind and performance you can feel.

Compatible With: 2015–2016 GMC/Chevrolet Duramax 6.6L

• Flow Rating: 100 GPH (Stock to 600 HP): True flow rating on diesel fuel at operational pressure. Not like competitors’ exaggerated flow numbers on thinner fluids at 0 psi.
• Flow Rating: 165 GPH (600 HP to 900 HP)
• Flow Rating: 250 GPH (900 HP to 1200 HP)
• Flow Rating: 290 GPH (1200 HP to 1500 HP)
• Warranty: Limited Lifetime (with registration)
• System Variant: No‑Drop Titanium Signature Series Fuel System