FASS Fuel Systems

FASS Fuel Systems Find us online at www.FASSride.com

FASS Fuel Systems can TRIPLE the life of your injection system while restoring power and MPG, sharpening throttle response, and improving cold weather performance!

09/25/2026

TRIPLE the life of your CAT's injection components with a single bolt-in upgrade đź‘€

09/25/2026

$5+ off-road diesel changes EVERYTHING 🤯 Here's what you need to know!

09/24/2026

For Brad, there was never a "Plan B" đźš« Full episode drops 10/2/2026 on Spotify!

MATS 2027 sponsorship applications are OPEN 💨 If you’re showing your truck at Mid-America Trucking Show next year, we wa...
09/24/2026

MATS 2027 sponsorship applications are OPEN 💨 If you’re showing your truck at Mid-America Trucking Show next year, we want to hear from you!

Apply for FASS Diesel Fuel Systems vehicle sponsorship. Showcase your diesel-powered vehicle and partner with us for performance support and exposure.

09/24/2026

555hp and 1,230lb-ft of torque from the new L6P aka “The Mongoose” 8.3 liter Duramax 🔥

09/24/2026

Diesel is EXPENSIVE right now, but we can help đź‘€

09/23/2026

Caiden's FASS-fueled six-fo is a certified tire slayer!

09/23/2026

Ethan reported a 1.5-2MPG gain after installing our Drop-In Series Fuel System!

09/22/2026

What's YOUR favorite diesel event? đź‘€ The FASS Life Podcast drops 10/2/2026 on Spotify!

09/22/2026

Real GPH. Real-world flow. No games. No excuses.

Address

16234 State Highway O
Marthasville, MO
63357

Opening Hours

Monday 7am - 7pm
Tuesday 7am - 7pm
Wednesday 7am - 7pm
Thursday 7am - 7pm
Friday 7am - 7pm

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