Product Description
Upgrade your 2011–2014 GM 6.6L Duramax (LML) with the FASS TSPC11100G Titanium Signature Series Plus 100GPH fuel system. This complete replacement system improves filtration, removes entrained air/vapor, and maintains consistent fuel pressure for smoother idle, better cold starts, and long-term injector protection.
Fitment
- 2011–2014 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax (LML)
- 2011–2014 GMC Sierra 2500HD / 3500HD 6.6L Duramax (LML)
- Flow Rate: 100 GPH | Supports: Stock up to ~600 HP | Typical Pressure: 8–10 PSI
- Note: Cab & chassis may require minor modifications.
Why Choose FASS Titanium Signature Series Plus
- Reduces air/vapor in fuel for consistent rail pressure and smoother operation
- Industry-leading filtration strategy with water separation to protect injectors
- ORB fittings, anodized 6061 hardware, black line for clean, durable installs
- Whisper Technology for quiet operation; Mass Flow Return (MFR) fuel polishing
- Lifetime warranty & 1,000,000-mile motor design
Installation Instructions
Find the official FASS install manuals here: FASS Installation Manuals
Cross-Reference & Recommended FASS Items (CPP Diesel)
- FASS NDTSPC11100G No-Drop Series Plus (2011–2014, Stock–600HP)
- FASS TSPC11165G Titanium Signature Series Plus (2011–2014, 600–1000HP)
- FASS TSPC12100G (2015–2016, Stock–600HP)
- FASS TSPC10100G (2001–2010, Stock–600HP)
- FASS FLP3000 Filter Pack (3× XWS3002 + 3× PF3001)
- FASS XWS3002 Extreme Water Separator (2-micron, current design)
- FASS PF3001 Particulate Filter
- FASS HK1001 Electric Heater Kit (Titanium & Signature Series)
Specifications for Fass TSPC11100G
| Brand | FASS Fuel Systems |
| Part Number | TSPC11100G |
| Flow / Support | 100 GPH; stock to ~600 HP |
| Typical Pressure | 8–10 PSI |
| UPC | Not specified by manufacturer |
| GTIN | Not specified |
| Package Dimensions | 14.00" W × 11.50" H × 18.00" D (approx.) |
| Shipping Method | Free Shipping (standard ground) |
| Prop 65 | WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov |
FAQs
Does this replace the factory lift pump and add air/vapor separation?
Yes — it’s a complete replacement system engineered to remove air/vapor and water while delivering consistent fuel pressure and volume to the high-pressure pump and injectors.
Is tuning required for installation?
No. This system is designed to support stock fuel demand up to ~600 HP without ECM tuning.
Which filters should I keep on hand?
Keep a set of XWS3002 (water separator) and PF3001 (particulate) filters, or grab the FLP3000 filter pack for multiple changes.
Cold-weather driving — do I need a heater?
For harsh winters, add the FASS HK1001 electric heater kit (plug-and-play for Titanium/Signature systems).
Will this fit a cab & chassis model?
Many installs are straightforward, but cab & chassis may require minor modifications.
