Eight Shock Therapy Upgrades For The RZR XP
Shock Therapy has released eight products to upgrade the performance on the all-new Polaris RZR XP.

Shock Therapy proudly announces the launch of an extensive array of groundbreaking products designed for the highly anticipated Polaris RZR XP. As the off-road industry’s premiere suspension tuning company and a trusted source for cutting-edge performance solutions, Shock Therapy delivers unparalleled performance and ride quality. With research, development, and testing for the RZR XP completed, the company proudly reveals an impressive product lineup that includes FOX RC2 Shocks, their custom-tailored Dual-Rate Spring Kit, Tie Rods, Radius Rods, Sway Bar Links, Sway Bars (front & rear), Limits Straps, Steering Rack, and internal valving with their game-changing Ride Improvement System (RIS).

“We are thrilled to introduce our latest product line for the Polaris RZR XP” said Justin Smith, owner and lead engineer at Shock Therapy. “The combination of our RC2 Shocks, dual rate spring kit, and a range of performance-enhancing components offers riders an unparalleled off-road experience that truly sets the Polaris RZR XP apart from the competition.”

The 2024 Polaris RZR XP comes in 2 and 4-seat configurations and three trim levels: Sport, Premium, and Ultimate. All models come with Walker Evans shocks.

As off-road enthusiasts eagerly embrace the advancements in technology and performance, Shock Therapy remains at the forefront of the industry, continuously pushing boundaries and redefining off-road experiences. With an unwavering dedication to engineering excellence, their team has meticulously crafted a range of products that elevate the Polaris RZR XP's capabilities to new heights.

The FOX RC2 Shocks provide a major performance upgrade to the Polaris RZR XP.

1) FOX RC2 Shocks

Considering that all trim levels of the RZR XP come with Walker Evans shocks, the FOX RC2 Shocks provide a major performance upgrade, unleashing the full potential of the Polaris RZR XP.

2) Dual Rate Spring Kit

The Dual-Rate Spring Kit provides for increased ride height, increased bottom-out resistance, reduced bucking, smoother ride quality over chop and chatter. Tailored to the individual’s needs and unit specifications, Shock Therapy considers driver weight, aftermarket accessories, terrain, driving style, and more.

3) Tie Rods

The stronger, end-to-end solution that retains alignment of factory geometry, Shock Therapy Tie Rods for the RZR XP come precision machined from high-strength 7075 billet aluminum. The inner joint retains stock geometry, has a larger ball and socket for extended life, and larger threaded stud to tie rod connection for added strength. The outer joint features their patented BSD (Bump Steer Delete) Kit, whose height-adjustable spacers eliminate bump steer.

4) Radius Rods

The Radius Rod Kits for the Polaris RZR XP come with stainless steel spacers and the highest quality, 3/4-inch teflon lined rod ends for strength and longevity.

Shock Therapy’s Race Rack and Pinion for the Polaris RZR XP boasts many impressive features that set it apart from other steering racks.

5) Sway Bars, Sway Bar Links (front and rear)

Shock Therapy’s Sway Bar Link Kits and Sway Bars (front and rear) replace the factory links with a simple bolt-on kit. The design uses high-quality frame mount bushings and billet aluminum mounting clamps that spread the load over a wider area. Plus, it has three adjustable settings. In its softest position, it is 50 percent stiffer than the stock sway bar, the next position is 60 percent stiffer, and the last position is 70 percent stiffer –– allowing you to tune how much body roll you want removed from your RZR XP depending on the driving conditions.

6) Limit Straps (front and rear)

Especially as one get’s bigger tires and wheels on their rig, the ‘clunking’ sound of the shocks dropping out and hanging on the top-out spring is probably a familiar one. Originally tuned for the factory wheel and tire settings, the internal spring will not be stiff enough to arrest extension with heavier aftermarket upgrades –– making Limit Straps a must-have.

Shock Therapy's patented design features a billet aluminum, laser-engraved upper mount and also prevents the strap from interfering with or getting tangled on other parts when the shock compresses and the strap’s slack increases. Set apart from most other options too, Shock Therapy’s Limit Straps not only adjust but bolt directly to the shock itself –– allowing the strap to be perfectly in line with the shock, thereby limiting the leverage exerted on it and increasing strap life.

7) Ride Improvement System

Shock Therapy’s Ride-Improvement System (RIS) drastically modifies the internals of the shock for a major upgrade in performance –– with internal valving custom-tailored to the driving style of each unit and the different terrains one tackles. The modifications inside the shock result in superior handling and plushness through small chop and chatter, increase bottom-out resistance at full compression, and remove excessively stiff ride quality at moderate & low speeds. Far from being only for racing applications, Shock Therapy’s RIS also supports recreational riders looking to get the most out of their suspension.

8) Steering Rack

The Shock Therapy’s Race Rack and Pinion for the Polaris RZR XP boasts many impressive features that set it apart from other steering racks, including:

  • 7075 Aluminum construction
  • Hard anodized plating
  • Dispersed grease passage lubrication
  • Huge 1-inch x 1-inch square rack gear
  • Pre-heat treated rack gear
  • Patented Gear Tooth Design
  • Heat Treated Pinion Gear
  • Pinion Bearings
  • Faster Steering Ratio
  • High Quality Rod Ends
  • Patented “Taper Lock” Jam Nuts
  • 4130 Chromoly Clevises

These cutting-edge components work in perfect harmony, ensuring a smooth and controlled ride while conquering the toughest terrains. The new Shock Therapy product line for the Polaris RZR XP is now available for purchase. For more information, please visit their website.