DynoJet Stage 5 Power Package – Polaris RZR XP Turbo / Turbo S

Name: DynoJet Polaris RZR XP Turbo Stage 5 Power Package
Brand: Dynojet
SKU: DYN-96090019
Price: 3999.99 USD
Availability: InStock

Ultimate Power and Cooling for Extreme Performance – Up to +40 WHP

Push your Polaris RZR XP Turbo or Turbo S beyond limits with the DynoJet Stage 5 Power Package — the pinnacle of UTV performance upgrades. Experience a massive power boost of up to +40 WHP combined with cutting-edge cooling technology, including a DynoJet-exclusive intercooler coolant expansion tank proven in extreme desert conditions.

This kit is engineered for racers, thrill-seekers, and desert warriors who demand track-grade power and rock-solid reliability in the harshest environments.

What’s Included? (All Stage 4 Components + More)

Power Vision 3 EFI Tuner — Pre-loaded with pro-level performance tunes calibrated for maximum output
DynoJet Clutch Kit — Designed for versatile terrain: sand, rock, mud, and everything in between
Reinforced Silicone Charge Tube — Durable and heat-resistant for boosted applications
Water-Cooled Big Turbocharger Upgrade — Delivers 17% more airflow with faster spool and higher boost
DynoJet Wastegate Actuator — Custom-tailored for precise boost control
NEW: DynoJet-Exclusive Intercooler Coolant Expansion Tank — Ron Davis-tested for superior heat management

Engineered to Keep Your Ride Cool Under Fire

The standout feature of the Stage 5 package is its intercooler coolant expansion tank, a game-changer in turbo cooling efficiency. Tested and proven in the unforgiving Nevada desert by racing legend Ron Davis, this system drastically lowers intercooler temperatures, allowing your turbo to operate cooler, longer, and with more consistent power—even in extreme heat.

Power and Performance That Can Be Trusted

With boost pressures up to 27 PSI, fine-tuned clutch engagement, and enhanced thermal management, the Stage 5 kit delivers:

At least 38% power increase on 2016 Polaris RZR models
20%+ power gains on newer units
Stable, repeatable performance for racing, trail riding, and desert running

This is not just power — it’s durable power built for winning and endurance.

Built In-House, Tested on the Trail

Every component—from clutch and turbocharger to cooling system and EFI tunes—is developed and tested by DynoJet’s expert engineers. Prototyped in-house and validated on real-world terrain, your upgrade comes with verified performance and unmatched reliability.

Exact Fitment

Compatible with these Polaris RZR models:

Polaris RZR XP 4 Turbo EPS: 2017, 2018, 2019
Polaris RZR XP 4 Turbo EPS DYNAMIX Edition: 2018, 2019
Polaris RZR XP 4 Turbo EPS Fox Edition: 2018
Polaris RZR XP 4 Turbo EPS LE: 2019
Polaris RZR XP 4 Turbo S: 2019, 2020
Polaris RZR XP Turbo EPS: 2017, 2018, 2019
Polaris RZR XP Turbo EPS DYNAMIX Edition: 2018, 2019
Polaris RZR XP Turbo EPS Fox Edition: 2018
Polaris RZR XP Turbo EPS LE: 2019
Polaris RZR XP Turbo S: 2018, 2019, 2020
Polaris RZR XP 4 Turbo: 2020
Polaris RZR XP 4 Turbo S Velocity: 2020
Polaris RZR XP Turbo: 2020
Polaris RZR XP Turbo S Velocity: 2020

Important: Not legal for sale or use in California on any pollution-controlled motor vehicle.

What Customers Are Saying

Luke P.
"Stage 5 transformed my 2019 XP Turbo S — unprecedented throttle response and cooler running everything. This is as close to a new UTV as you can get."

Rachel W.
"Took first place in our local desert race thanks to Stage 5. That expansion tank makes a real difference. Deep grateful to Side by Side Sports for support."