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Titanium Signature Series PLUS

Engineered for the diesel enthusiast, the FASS Titanium Signature Series PLUS is the ultimate in fuel system performance and protection. Designed to support high-horsepower builds as well as stock, this system delivers superior fuel flow, enhanced filtration, and consistent pressure—eliminating air and vapor that can wreak havoc on your injection system.


With its industry-leading filtration down to 2 microns and whisper-quiet operation, the Titanium Signature Series PLUS ensures maximum efficiency and long-term reliability for your diesel truck. Built tough in the USA and backed by FASS, this is fuel delivery—redefined.

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Titanium Signature Series PLUS

The FASS Titanium Signature Series PLUS delivers superior fuel performance for both stock and high-horsepower diesels. It maintains consistent pressure, removes air and vapor, and features 2-micron filtration, quiet operation, and U.S. construction for maximum reliability and efficiency.

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No-Drop Kits

Installing a Titanium Signature Series Fuel System has never been easier, or more affordable. Designed to simplify installation, No-Drop Kits include our Fuel Sump—which prevents the need for removing your fuel tank.


Better still, No-Drop Kits offer significant savings over buying a Titanium Signature Series Fuel System and Sump Kit separately! These Kits include everything you need for a simple, straightforward FASS installation—and nothing you don’t.

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No-Drop Kits

Installing a Titanium Signature Series Fuel System is now easier and more affordable with our No-Drop Kits. Featuring a built-in Fuel Sump, they eliminate tank removal and cost less than buying the system and sump separately—everything you need for a simple FASS install, nothing you don’t.

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Drop-In Series

FASS Drop-In Technology was developed to achieve industry-leading filtration with the simplest possible installation—making our Drop-In Series Systems a true bolt-in upgrade. If you’re mechanically inclined, a Drop-In Series Fuel System can be installed in your driveway in less than an hour! But don’t let the easy installation fool you—our Drop-In Series Fuel Systems offer the same world-class filtration as our Titanium Signature Series and Industrial Series lines.

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Drop-In Series

FASS Drop-In Technology delivers industry-leading filtration with hassle-free installation—making it a true bolt-in upgrade. Installable in under an hour, the Drop-In Series offers the same world-class filtration as our Titanium Signature and Industrial Series systems.

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5 Star Reviews

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We purchased the Titanium series fuel system for our 2003 Ford Powerstroke. This was the only thing our 7.3 was missing! Thankful I went with a FASS. No company is perfect but given the opportunity FASS has lived up to its name in the industry. It's well worth the $ and feels good supporting local business right here in The Show-Me State
- Alex Day

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I installed a FASS system in my truck in 2010 and about 175,000 miles it still works great. I called to get a spring and ball because it started to stick and give a funky fuel pressure fluctuation. No problems get ahold of them and getting one.
- D. Lindberg

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My truck ran really rough Before I got a fass now after I did the fass system runs really good really like this systems Will Definitely Do more business with them in the future
- Silas Jessop

FASS Fuel Air Separation System?

FASS stands for Fuel Air Separation System and is a combination diesel fuel lift pump and fuel filtration system that is designed to improve your diesel truck’s fuel mileage, engine performance and extend the life of your diesel injection system.

Our diesel fuel pump and diesel fuel filters are made in America in order to provide complete customer satisfaction. Regardless of the vehicle you drive, and how you power your life, FASS diesel fuel systems provide the cleanest fuel in order to extend the life of your favorite truck.

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