When you transform a Mercedes-Benz Sprinter from a hollow cargo van into a fully-loaded Outside Van, you’re adding significant weight—cabinets, water tanks, lithium batteries, and gear. This extra mass turns the nimble factory chassis into a top-heavy vehicle prone to side-to-side sway, harsh bottoming out, and a “tin can” rattle on washboard roads.

To reclaim your ride quality, you need more than just a lift; you need an engineered suspension system. Here is a breakdown of the three most popular Sprinter suspension upgrade paths.

1. The Agile Off-Road RIP Kit

The RIP Kit (Ride Improvement Package) is the “gold standard” for a total system overhaul. Unlike a simple shock swap, this is a holistic solution that addresses the van’s springs as much as its dampers. The RIP Kit is an entire system of parts that help make your Sprinter much easier to drive on and off the road.

• What’s Inside: Custom-rate rear leaf springs (tuned to your van’s specific weight), bracketry to reinforce the strength of your suspension system as it connects to the chassis, wheel spacers, and tuned front and rear FOX 2.0 Auxiliary shocks.

• Best For: Owners who want a “set it and forget it” solution that fixes the fundamental geometry and weight-bearing issues of a heavy build.

• The Difference: It actually increases your usable suspension travel and can provide up to a 2-inch lift as a byproduct of better spring rates, not just spacers. An improved ride both on and off road will be noticeable as you are able to take corners with full control and there will be much less of a side to side “death wobble” from mushy stock van shocks and suspension.

2. FOX 2.5 Performance Elite Series (PES)

If you want professional-level control without moving into “race-only” territory, the FOX 2.5 Performance Elite is the sweet spot. Unlike the RIP Kit which is an entire suspension system, the Performance Elite front and rear shocks are meant to be used in conjunction with the parts from the RIP Kit, replacing only the front coil-over struts and rear shocks. These are frequently featured in our Outside Van “Overnight” and “Syncline” models, and are fully compatible with all 2019+ Mercedes-Benz Sprinter 4WD and AWD chassis.

• Key Feature: Dual Speed Compression (DSC) adjusters. These allow you to manually “click” your suspension to be stiffer for high-speed highway stability or softer for crawling over rocky trails.

• Engineering: The 2.5-inch aluminum bodies hold more oil than stock shocks, which prevents “shock fade” (when your suspension gets mushy after working hard on a long dirt road).

• Best For: Adventure seekers who switch between heavy gear hauls and empty weekend sprints and want to fine-tune their comfort on the fly.

3. FOX Factory Race Series (FRS)

The FOX Factory Race Series brings Baja-proven technology to the Sprinter platform. This is the pinnacle of van suspension, designed for those who push their rigs into the most demanding environments. Race Series features a lot of the same great specs as Performance Elite including the adjustable Dual Speed Compression adjusters, with added technology including:

• Internal Bypass Technology: This allows the shock to have “zones” of damping. It’s plush and comfortable during normal driving but becomes progressively stiffer as the shock compresses, preventing harsh bottom-outs on big hits. Shock fluid bypasses the main piston through bleed holes in the ride zone. As the shock extends past the ride zone in rebound or compression, the bleed holes terminate, forcing fluid through the main piston. Its science baby!

• Durability: Features Cerakote® finishing for extreme corrosion resistance and high-flow pistons for maximum responsiveness.

• Best For: Heavy, high-spec builds that spend 50% or more of their time off-pavement or in extreme terrain where “standard” shocks simply can’t keep up.

Comparison Table: Which One Fits Your Build?

Final Verdict: How to Choose?

• Choose the Agile RIP Kit if your van feels “heavy” and sags in the rear. It’s the best foundation for any build. Then, choose an upgraded shock package that best fits your driving style to be attached along WITH the RIP Kit:

  • Choose the FOX 2.5 Performance Elite if you love the “dialed-in” feeling and want to adjust your ride for different road conditions.

  • Choose the FOX Factory Race Series if you are building an apex predator of a van and plan to adjust your ride performance as you tackle washboard miles at speed.