FASS Titanium Signature Series 250GPH Fuel System for GMC/Chevrolet 2001–2016 Duramax 6.6L

FASS Titanium Signature Series 250GPH Fuel System for GMC/Chevrolet 2001–2016 Duramax 6.6L

If you drive a 2001–2016 GMC/Chevrolet with the Duramax diesel engine, upgrading your fuel filtration and delivery can triple the life of the injection system, increase MPG and power, and provide exceptional extreme cold‑weather operation.

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

Peace of Mind, Efficiency, Power

Supports Stock & Modified Duramax: Plenty of fuel for stock and modified GM/Chevy trucks.

Injector Protection: Triples the life of injectors and injection pump.

FASS Filtration: Optimizes combustion, restores horsepower, and maximizes MPG (results vary).

Limited Lifetime Warranty: Coverage with product registration.

Advanced Filtration Technology

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

Water Separation: Third‑party proven to remove over 99% of water.

Air/Vapor Removal: Eliminates entrained air and vapor that damage injection systems.

2‑Micron Absolute Filtration (Microglass): Removes debris smaller than OEM filters.

Mass Flow Return (MFR): Continuously polishes fuel by recirculating unused fuel through the filters.

Key Benefits

Improved Reliability: Triples injection system life

Maximized Horsepower: Improved throttle response and balanced injection timing.

Optimized MPG: More complete combustion (results vary).

Peace of Mind: Extreme Water Separator prevents costly fuel contamination damage.

Extreme Cold Weather Confidence: Reliable starts in harsh climates when paired with a FASS Fuel Heater.

Proven Reliability: Less than a 0.5% failure rate.

Cleaner Operation: Reduced DPF regens and soot output.

Improves Fuel Lubricity: Increases lubricity by at least 10%.

Key Features

Fuel Flow: Supports 900HP and modified 6.6L Duramax engines up to 1200 HP.

2‑Micron Absolute Filtration: Captures finer debris than OEM filters.

99%+ Water Removal: Third‑party verified.

Patented Air/Vapor Removal Technology

1,000,000+ Mile Motor Life

30,000‑Mile Filter Life Expectancy

Limited Lifetime Warranty (with registration)

Optional Electric Fuel Heater Kits

Whisper Technology: Industry’s quietest motor.

Performance Radius Cuts (PRC): Smooth, restriction‑free fuel flow.

Heavy‑Duty Steel Mounting Brackets

Why Choose FASS?

At FASS, we don’t rush products to market — we strive for perfection and settle for excellence. That’s why our systems maintain a failure rate below 0.5% and are trusted by diesel owners nationwide.

Whether you’re daily‑driving your Duramax‑powered GMC/Chevrolet or building serious horsepower, the FASS Titanium Signature Series Fuel System delivers peace of mind and performance you can feel.

Compatibility & Flow Ratings

Compatible With: 2001–2016 GMC/Chevrolet Duramax 6.6L

250 GPH: 900 to 1200 HP – TSC10250G

Warranty: Limited Lifetime (with registration)