FASS TSC15250F220G TITANIUM SIGNATURE SERIES DIESEL FUEL SYSTEM 220GPH (70–75 PSI) FOR 2020–2022 GM 6.6L DURAMAX 900–1200HP

Product Description

Unlock consistent fuel delivery for big-power L5P builds. The FASS TSC15250F220G Titanium Signature Series delivers a massive 220 GPH at a preset 70–75 PSI to support aggressive tuning and fuel system upgrades on 2020–2022 GM 6.6L Duramax applications (Silverado/Sierra 2500/3500). Advanced 2-micron filtration, air/vapor separation, and quiet motor tech help protect injectors and smooth out idle while improving cold-start performance.

Key Features

• 220 GPH flow; 70–75 PSI preset pressure
• 2-micron filtration; water/air/vapor separation
• FASS Whisper Technology for ultra-quiet operation
• Mass Flow Return (MFR) “fuel polishing” circulation
• Performance Radius Cuts (PRC) for optimized flow paths
• Bolt-on bracketry for clean install; 1/2" lines and ports
• Limited lifetime warranty; ~30,000-mile filter interval

Fitment

• 2020–2022 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax (L5P)
• 2020–2022 GMC Sierra 2500HD/3500HD 6.6L Duramax (L5P)

Note: FASS indicates this high-output system requires aftermarket tuning to be compatible with these model years.

Cross-Reference / Related FASS Options (CPP Only)

• FASS TSPC15290F240G Titanium Signature Series PLUS 240GPH (2020–2023 GM 6.6L)
• FASS NDTSC15290F240G No-Drop Series 240GPH (2020–2023 GM 6.6L)
• FASS TSC15180F140G Titanium Signature Series 140GPH (2020–2022 GM 6.6L)
• FASS TSC15290F240G Titanium Signature Series 240GPH (2020–2022 GM 6.6L)

Installation Instructions

Find install manuals on FASS’s official page: FASS Installation Manuals. Navigate to GM/Chevrolet → 2500/3500 Duramax → 2020–2024/2025 L5P for the correct guide.

Why Upgrade to FASS on L5P?

• Reduces injector-killing air/vapor and particulates
• Stabilizes rail pressure for high-HP calibrations
• Improves cold-weather starts and drivability
• Designed for longevity with quiet operation

FAQ

Does this 220GPH system require tuning?

Yes. For 2020–2022 L5P, FASS indicates aftermarket tuning is required to ensure compatibility and proper fueling strategy.

What horsepower range will this support?

It’s aimed at aggressive builds in the ~900–1200 HP range when paired with appropriate fueling and tuning upgrades.

Will this replace the factory lift pump?

Yes—this is a complete replacement fuel system designed to deliver consistent volume and pressure while filtering and de-aerating fuel.

How often should I change filters?

Typical interval is about 30,000 miles, but check fuel quality and service conditions; shorten intervals for harsh environments.

Is there a quieter pump option?

The Titanium Signature Series already incorporates Whisper Technology for reduced noise without restricting flow.

Specifications for Fass TSC15250F220G