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Welcome to Filthy Motorsports.

Filthy Motorsports is a specialty off-road shop in Boulder, Colorado that specializes in serving off-road enthusiasts that prefer to do the work themselves. While we do offer installation and custom fabrication services, we believe that half the fun of four-wheeling takes place in the garage. To give you the best service possible, we're often available after-hours and on weekends via email and we're constantly adding products to our on-line store for fast, safe, and easy shopping.



King Shocks King Off-Road Racing Shocks Experts
Whether you're looking for a bolt-on OEM kit for your daily driver or a set of custom built race-spec bypass shocks for your trophy truck, we're your source for King Off-Road Racing shocks.

** NEW! Now All King Shocks Include FREE SHIPPING! **

Shop: [ King OEM Kits ] [ King UTV Kits ] [ King Shocks and Coilovers ]






ARB Compressor Limited Time Offer From ARB!
Get free shipping and a free compressor with any ARB Air Locker purchase through May 31st!
ARB Lockers



Warn Winch Limited Time Offer From WARN!
Free $200 accessory kit with any qualifying Warn Winch purchase through June 30th!
Warn Winch



New! Free Shipping on all Yukon Gears, Master Install Kits, and Lockers!



Deals of the Month!
  • 5% Off All AFE Products
  • 5% Off All Dynomax Products
  • 5% Off MBRP Exhaust Systems
  • 10% Off All Painless Wiring Products
  • $25 Rebate On Hypertech Products
  • Up To $25 Off Superchips Products


Keep in mind that we're an authorized dealer for thousands of performance brands with millions of different products so if you don't find everything you're looking for here don't hesitate to email Quotes@FilthyMS.com, complete our Quote Request Form, or call us for a quote or package deal pricing!





Raceline Monster Series Beadlocks
Raceline Monster Series Competition Beadlocks
List Price: $330.00
Your Price: $299.95

Raceline Monster Series Beadlock wheels are designed and built specifically for off-road desert racing and competition rock crawling. They are available in both lightweight cast aluminum and high strength race-spec forged aluminum models in 15" and 17" sizes.
ORI ST Struts
ORI STX Struts with STX Racing Top Caps
List Price: $560.00
Your Price: $505.00

ORI STX Struts are fully loaded nitrogen shocks with three compression stages, a built-in bump stop, seven position externally adjustable rebound damping, and and anti-unloading park position feature. They remove the need for a sway bar and can support up to 1,300 lbs.
King 2.5 Bypass Shocks
King 2.5 Bypass Shocks
List Price: $577.70
Your Price: $549.95

King 2.5 Performance Race Series Bypass Shocks can be ordered with up to 6 bypass tubes and in travel lengths up to 18 inches. 2 bypass tubes are included in this price, as is a piggyback reservoir that can be upgraded to a remote reservoir.
SCS Gearbox Quick Change Transfer Case
SCS Gearbox Quick Change Straight Through 4x4 Transfer Case
List Price: $2,495.00
Your Price: $2,399.95

SCS Quick Change Straight Through Transfer Cases are a compact version of the larger SCS drop style transfer case and retain all of the strength needed to handle high horsepower monster trucks, mud trucks, and sled pullers. Clockable with left or right side output shafts.
King 2.5 Coilover Shocks
King 2.5 Coilover Shocks
List Price: $392.20
Your Price: $374.95

King 2.5 Performance Race Series Coil Over Shocks can be setup with up to 3 spring rates and with stock shock travel lengths ranging from 6 to 18 inches. Piggyback and remote reservoirs are a few of the many available upgrades.



Jeep, Truck, and SUV Parts Off-Road Parts
We've got the lift kits, wheels, tires, body armor, winches, lights, and anything else you need to turn your Jeep, truck, or SUV into a capable off-road vehicle that's comfortable on the street and safe to use as a daily driver.

Rock Crawler Parts Rock Crawling Parts
Heim joints, DOM tubing, beadlock wheels, sticky tires, transfer cases, hydraulic steering, air bypass shocks, lockers, and all the custom off-road fabrication parts you need to build, repair, and maintain your hardcore trail rig or competition rock crawler.

Rally Car Parts Rally Car Parts
Complete suspension systems, racing seats, harnesses, roll cages, turbo kits, and all the race-spec parts you need to turn your Subaru, Mitsubishi, or any other car into a high speed, high performance, on and off-road racer.

Desert Racing Parts Rally Car Parts
From Trophy Trucks and Class 1 buggies to the prerunners and support trucks that assist them, we carry all the hardcore and race-spec parts you need for high speed desert driving.

Race Car Parts Race Car Parts
While we tend to focus on off-road vehicles, our product lines and expertise carry over into all forms of motorsports including high performance street vehicles and race cars.


Don't see what you're looking for? We carry a broad range of products above and beyond what we can make available on this website. Give us a call or send us an email with what you need and chances are we can get it for you and at a great price.







Now Available!
Filthy Motorsports Hoodies!

Filthy Motorsports Hoodies


Featured Brands
We proudly carry the full product line of the following brands:

Rigid Industries
Rigid Industries

Master-Pull
Master-Pull

ARB Lockers
ARB Lockers

Raceline
Raceline Wheels

Lightforce
Lightforce

Sparco Seats
Sparco Seats

Bubba Rope
Bubba Rope

King Shocks
King Racing Shocks

Pit Bull Tires
Pit Bull Tires

ORI Struts
ORI Struts

Warn Winches
Warn Winches

Yukon Gear
Yukon Gear