EPI Low Elevation Sand Dune Clutch Kit for 2009 Polaris RZR 800 S 4×4 – Stock Tires
Unleash maximum dune performance from your 2009 Polaris RZR 800 S 4×4 with the EPI Performance Low Elevation Sand Dune Clutch Kit. Specifically engineered for machines running stock tires at 0–3000 feet elevation, this dune-calibrated CVT tuning kit is designed for RZR models equipped with an aftermarket full exhaust system and EFI controller.
When paired with exhaust and EFI upgrades, proper clutch calibration becomes essential to maintain peak power RPM in deep sand. This kit is designed and tested specifically for sand dune applications, ensuring your RZR holds its power band during aggressive dune riding and steep hill climbs.
Key Features
- Designed for Stock Tires – Optimized clutch setup for factory tire size.
- Built for Modified Machines – Calibrated for RZR 800 S models with full exhaust and EFI controller upgrades.
- Low Elevation Setup (0–3000 ft) – Precision tuned for sea-level dune riding.
- Maintains Peak Power RPM – Keeps your engine in its optimal range when climbing dunes.
- Improved Low-End Torque – Stronger launch performance in soft sand.
- Quicker Backshift – Crisp throttle response under aggressive acceleration.
- Reduced Belt Slip – Minimizes clutch heat and extends belt life.
- Sand-Tested Performance – Engineered specifically for demanding dune environments.
Technical Specifications
- Brand: EPI Performance
- Vehicle Fitment: 2009 Polaris RZR 800 S 4×4
- Elevation Range: 0–3000 feet
- Tire Compatibility: Stock tires
- Required Setup: Aftermarket full exhaust system and EFI controller
- Application Type: Sand dune riding
- Note: Clutch kit components may vary from photo
Why Upgrade for Sand Dunes?
Deep sand creates continuous drivetrain load, especially on modified engines with increased airflow and fuel delivery. Without proper clutch tuning, your RZR can fall out of its optimal power band, reducing acceleration and increasing belt wear.
This EPI Sand Dune Clutch Kit recalibrates clutch engagement and backshift characteristics to match your performance upgrades, ensuring stronger acceleration, smoother engagement, and cooler CVT operation — making it an essential upgrade for serious dune riders.







Reviews
There are no reviews yet.