Description
Overview
The FASS Titanium Signature Series Diesel Fuel System delivers 165 gallons per hour of clean, air-free fuel to your 2011-2014 GM Duramax LML 6.6L. Unlike many other diesel platforms, your Duramax doesn’t leave the factory with a dedicated lift pump, which forces the CP3 injection pump to draw fuel under vacuum. That added workload puts extra stress on the CP3 and can introduce air into the fuel supply. The Titanium Signature Series (Part No. TSC11165G) solves that problem by actively pushing filtered, de-aerated fuel to the injection system.
Engineered by FASS Fuel Systems to be a top-performing, long-lasting and reliable aftermarket filtration and fuel delivery solution, this system is built to protect and support your Duramax under demanding conditions. Rated at 165GPH and operating in the 8-10 PSI range, it is designed for moderate to extreme builds supporting roughly 600-900 horsepower, giving you the fuel volume headroom needed for multiple fueling system upgrades.
Advanced Filtration & Protection
Beyond raw flow, the Titanium Signature Series is about protection. Its advanced filtration removes contaminants and separates air from your diesel, helping to shield the injection system and injectors from premature wear. By delivering cleaner, air-free fuel, the system helps extend the service life of your CP3 and injectors — components that are expensive to replace and critical to how your truck runs.
Constructed from durable 6061 T-6 billet aluminum with a black finish, the housing is machined for strength and longevity in a hardworking underhood and chassis environment. The system ships complete as a kit, so you receive a purpose-built upgrade engineered specifically for the Duramax application rather than a generic add-on.
Key Highlights
- 165GPH flow rating — ample fuel volume to support multiple fueling system upgrades
- Operating pressure of 8-10 PSI, tuned for moderate to extreme 600-900 HP builds
- Rugged 6061 T-6 billet aluminum construction in a black finish
- Advanced filtration that removes contaminants and separates air from the fuel
- Relieves the CP3 injection pump from drawing fuel under vacuum
- Backed by the FASS limited lifetime warranty
Fitment
This Titanium Signature Series system is engineered for the 2011-2014 GM Duramax LML 6.6L, covering Truck and SUV applications. Whether you’re daily driving, towing, or pushing a performance build into the extreme range, it provides the consistent, air-free fuel delivery your engine was never given from the factory.
Add the FASS Titanium Signature Series 165GPH to your Duramax and give your injection system the clean, pressurized fuel supply it needs to perform reliably and last longer. It’s a foundational upgrade for any owner serious about protecting their diesel while unlocking room to grow.
