Increased Fuel Economy
Save Your Injection System & Thousands of Dollars
Increase Horsepower & Torque

FASS Diesel Fuel System for L5P Duramax
FASS Diesel Fuel Systems for commercial trucks

Our Products Are Designed to Help You

Get The Most Out of
Your Diesel Engine

FASS Diesel Fuel Systems is built on innovation / engineering / product development.  In 1991 Brad Ekstam was working on diesel engines and found a more innovative way to provide the engine with a fuel supply that increased performance and improved engine life.  FASS carries that ambition and drive for excellence today.

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