S&S Diesel · Fuel Systems & Injectors

More Fuel.More Power.Proven.

Race-proven CP3, CP4, and injector upgrades for Cummins, Power Stroke, and Duramax. Built to flow more, hold pressure, and live under load.

Shop S&S Diesel → Shop FASS Fuel Systems

Popular Brands

Top Sellers

View all

5% off

FASS Fuel Systems
FASS Fuel Systems Filter Pack FP3000

Sale price USD 99⁰⁰ Regular price USD 104²¹

View details
5% off

FASS Fuel Systems
FASS Fuel Systems XL Filter Pack FP3000XL

Sale price USD 56⁰⁵ Regular price USD 59⁰⁰

View details
S&S DIESEL
S&S Diesel Gen2.1 CP4 Disaster Prevention Bypass Kit Ford 2011-2025 6.7L Powerstroke

Regular price USD 400⁰⁰

View details
Carli Suspension
14-23 RAM 2500/3500 ADJUSTABLE TRACK BAR

Regular price USD 543⁰⁰

View details
Carli Suspension
17-24 FORD F250/F350 HIGH MOUNT STEERING STABILIZER

Regular price USD 473⁰⁰

View details
Carli Suspension
14-23 RAM 2500 2.5" LEVELING SYSTEM, DIESEL

Regular price USD 1,331⁰⁰

View details
Carli Suspension
Carli - FORD F250/F350 Low Mount Steering Stabilizer, with Differential Guard 05-22

Regular price USD 731⁰⁰

View details
Carli Suspension
14-23 RAM 2500/3500 STAINLESS LOW MOUNT STEERING STABILIZER

Regular price USD 357⁰⁰

View details
Carli Suspension
Carli - FORD F250/F350 2.5"/3.5" Adjustable Radius Arms 05+

Regular price USD 1,641⁰⁰

View details
Carli Suspension
05-23 FORD F250/F350 CASTER SHIMS

Regular price USD 81⁰⁰

View details
Carli Suspension
03-13 RAM ADJUSTABLE TRACK BAR

Regular price USD 543⁰⁰

View details
Carli Suspension
05-23 FORD F250/F350 DIESEL COIL SPRINGS 2.5"

Regular price USD 405⁰⁰

View details
Carli Suspension
03-13 RAM 2500/3500 SUSPENSION BALL JOINTS

Regular price USD 940⁰⁰

View details
Carli Suspension
17-23 FORD F250/F350 ADJUSTABLE TRACK BAR

Regular price USD 575⁰⁰

View details
FASS Motorsports
FASS 80's Tee

Regular price USD 30⁰⁰

View details
Carli Suspension
Carli - FORD F250/F350 Torsion Sway Bar 2.5" & 3.5" Lift 17+

Regular price USD 1,490⁰⁰

View details
Carli Suspension
Carli Suspension 2.5" Commuter 2.0 System, BASE, for 2017+ Ford F250/F350 Diesel

Regular price USD 2,272⁰⁰

View details
Carli Suspension
14-23 RAM 2500/3500 DIESEL LINEAR RATE COIL SPRINGS

Regular price USD 483⁰⁰

View details
Carli Suspension
13-23 RAM 2500/3500 FABRICATED RADIUS ARMS, LIFT SYSTEMS

Regular price USD 1,761⁰⁰

View details
Carli Suspension
05-16 FORD F250/F350 ADJUSTABLE TRACKBAR

Regular price USD 438⁰⁰

View details

New Arrivals

View all

Your Favorite System Just Got an Upgrade

All PLUS and No Drop Plus systems now come standard with an all-new Heat Sink. This further extends the life of our proven million-mile motor by lowering the internal temperature by up to 20 degrees.

Shop Now!

JTX Forged
JTX Drive DX-06 Flow-Formed Wheel

Regular price USD 760⁰⁰

View details
JTX Forged
JTX Drive DX-05 Flow-Formed Wheel

Regular priceFrom USD 760⁰⁰

View details
JTX Forged
JTX Drive DX-02 Flow-Formed Wheel

Regular priceFrom USD 760⁰⁰

View details
JTX Forged
JTX Drive DX-01 Flow-Formed Wheel

Regular priceFrom USD 760⁰⁰

View details
JTX Forged
JTX Drive DX-03 Flow-Formed Wheel

Regular price USD 1,160⁰⁰

View details
JTX Forged
JTX Drive DX-04 Flow-Formed Wheel

Regular priceFrom USD 560⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Wicked – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Turbo – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Stiletto – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Splinter – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Silencer – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Schizo – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Sawback – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Ruckus – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Reaper – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Psycho – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Prism – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Orbit – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Lotus – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Enclave – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Empire – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Dao – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Cycle – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details
Up to 8% off

JTX Forged
JTX Forged Cosmo – UTV Series Forged Wheel

Sale priceFrom USD 972⁰⁰ Regular price USD 1,051⁰⁰

View details

Top Picks Under $50

View all

FASS Motorsports
FASS 80's Tee

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Motorsports Teal Triple Turbo Tee 2.0

Regular price USD 30⁰⁰

View details
FASS Fuel Systems
FASS Fuel Systems 0-ring Kit

Regular price USD 10⁰⁰

View details
5% off

FASS Fuel Systems
FASS Titanium Signature Series Extreme Water Separator XWS3002

Sale price USD 29⁴⁵ Regular price USD 31⁰⁰

View details
FASS Motorsports
FASS Grey Truck Tee

Regular price USD 30⁰⁰

View details
5% off

FASS Fuel Systems
FASS Titanium Signature Series Particulate Filter PF3001

Sale price USD 20⁹⁰ Regular price USD 22⁰⁰

View details
5% off

FASS Fuel Systems
FASS Fuel Systems Extended Length Extreme Water Separator

Sale price USD 32³⁰ Regular price USD 34⁰⁰

View details
FASS Motorsports
FASS Motorsports Triple Turbo Tee 2.0

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Transfer Decals White, Red & Black

White Red Black

Regular price USD 10⁰⁰

View details
5% off

FASS Fuel Systems
FASS Fuel Systems Extended Length Particulate Filter

Sale price USD 23⁷⁵ Regular price USD 25⁰⁰

View details
FASS Motorsports
FASS Diesel Fuel Systems 28" x 76" Shop Banner

Regular price USD 15⁰⁰

View details
FASS Motorsports
FASS Fuel Chrome License Plate

Regular price USD 10⁰⁰

View details
FASS Motorsports
Double XL FASS Chrome Decal

Regular price USD 20⁰⁰

View details
FASS Motorsports
FASS Classic Trucker Hat

Regular price USD 30⁰⁰

View details
Sold out

FASS Motorsports
FASS Diesel Fuel Systems | Wet Paint Tee

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Fabrication Tee

Orange Teal

Regular price USD 30⁰⁰

View details
FASS Motorsports
The Drippy Tee

Green Purple

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Fabrication and Design | Bad & Boujee Tee

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Motorsports | Spray Paint Tee

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Retro Logo Shirt

Regular price USD 30⁰⁰

View details
FASS Motorsports
FASS Camo Hat

Regular price USD 30⁰⁰

View details
5% off

FASS Fuel Systems
FASS Fuel Systems Drop-In Particulate Separator Filter

Sale price USD 32³⁰ Regular price USD 34⁰⁰

View details
5% off

FASS Fuel Systems
FASS Fuel Systems 2013-2018 6.7L Cummins Rear Water-In-Fuel Sensor Delete Harness

Sale price USD 36¹⁰ Regular price USD 38⁰⁰

View details
FASS Motorsports
Double XL FASS Red Decal

Regular price USD 20⁰⁰

View details

FASS Motorsports Blog

View all

Everything You Need to Build a 900HP 4th Gen Cummins
Build a 900HP 4th Gen Cummins the right way with a built transmission, 100% over injectors, 12mm CP3, ARP 625 studs, FASS Fuel System, custom tuning, and more!
Jake Hopkins | June 22, 2026
Buying your first diesel truck? Here's 3 things you NEED to think about.
Whether you're shopping for a Powerstroke, a Cummins, a Duramax, or something not-so-mainstream like a 6.9 IDI, this article is for you!
Jake Hopkins | June 19, 2026
Everything You Need to Know About the 6.9 and 7.3 IDI Diesel | FASS Motorsports
Learn everything about the 6.9 and 7.3 IDI diesel engines, including history, reliability, common issues, and why these pre-Powerstroke Ford diesels still matter!
Jake Hopkins | June 16, 2026
6.7 Powerstroke and L5P Duramax Are the Tune-Only Kings!
Why are the 6.7 Powerstroke and L5P Duramax the tune-only kings? Learn how modern diesel tuning unlocked a new horsepower war with 600HP-capable trucks.
Jake Hopkins | June 10, 2026
Do Lifted Trucks Ride Rough? | FASS Motorsports
Do lifted trucks ride rough? Learn what affects ride quality, including lift height, tires, alignment, and how to build a lifted truck that drives right!
Jake Hopkins | June 9, 2026
MINT 7.3 Powerstroke F-350 gets the full FASS Motorsports treatment!
A mint-condition, 2-owner 7.3 Powerstroke F-350 came to FASS Motorsports for major upgrades including tuning, exhaust, BDS lift kit, FASS Fuel System, and more!
Jake Hopkins | June 2, 2026
Banks Monster-Ram Intake & Killer Grid Heater Upgrade | FASS Motorsports
Own a 6.7 Cummins? You NEED the Banks Monster-Ram Intake and Killer Grid Heater Upgrade!
Jake Hopkins | June 1, 2026
Own a '19–'24 6.7 Cummins? You need the Hamilton Cams Flat Tappet Conversion Kit.
Why is the Hamilton Cams Flat Tappet Conversion Kit is a must-do upgrade for 2019–2024 Ram 6.7 Cummins owners? Click to learn more!
Jake Hopkins | May 29, 2026