Polaris RZR Pro XP/Turbo R/Pro S Stage 4 Lock & Load Kit by Aftermarket Assassins

Kit fits all 2021-Up Pro XP/Turbo R/Pro S models 2 & 4 Seat **Does NOT fit 2020 Pro XP models**

*Note 2021-Up models have a different helix design and do not need the pre-airbox intake tube* Price difference for years reflects this.

• Ready to step up to the next level on your Pro XP/Turbo R and gain some serious power? Up to 320-330 crank horsepower if you build your motor and run race gas or ethanol! However, this turbo will still trail ride on Level 2 (our lowest big turbo tune level) all day long, all while putting less stress on the turbo and motor. This is NOT just a simple billet wheel turbo mod, this turbo has a larger than stock compressor wheel/housing - this gains turbo efficiency to push more air per RPM of the turbo. Boost temps will skyrocket quickly on the factory turbo, whereas with our big turbo they will be much lower, even at boost pressures over 25 PSI! Now that we are moving air on the intake side, we need to get that air out. Our big turbo includes a larger exhaust housing with a high flow exhaust turbine to create less back pressure and heat buildup in the motor. Heat buildup on the exhaust side is another HUGE issue with the factory turbo. What's essentially happening is you are running out of exhaust flow, and that makes more power very hard to produce reliably and consistently. With this high flow turbine, we can increase boost and see a healthy increase in horsepower on higher level tunes with lower EGT. The factory wastegate is also a big problem as it's very weak, and as time passes the spring only continues to weaken eventually leading to boost issues. Building boost with a wimpy wastegate can produce inconsistent results, hot temps, and turbo overheating. We install a high pressure billet wastegate actuator complete with a new stainless steel bracket. This wastegate has extremely consistent results, will hold a huge amount of boost, and is a key component in this turbo upgrade working so well. Each turbo is fully blueprinted and balanced with new bearings from a professional turbocharger manufacturer.
• Thinking of another turbo or turbo mod? Many of our competitors offer an inferior turbo and do not offer the advanced tuning we do. Many use the weak stock wastegate, do not bore the compressor housing, or do not modify/enlarge the exhaust turbine. These are all huge reasons why our big turbo works so well. Tuning changes are drastic for modifications like this, and many others do not have the correct tuning knowledge to pair with such a mod.
• Lock & Load! This Stage 4 kit provides a big increase in horsepower and torque simplified into an easy package. This Stage 4 kit is the most complete turbo upgrade kit you'll find for your RZR Pro XP/Turbo R/Pro S and backed with the best tuning out there to make your RZR rip all day long. This kit packs a huge punch for the ultimate power gains to the wheels on all fuels. We change boost, timing and hundreds of parameters to deliver safe, yet big horsepower gains. The exhaust greatly reduces back pressure so we can run more boost and that boost delivers more power. The clutching then transfers that power and turns it into wheel power instead of simply just turning it into RPM. Since the stock BOV is weak, we include our high quality billet one in this kit as well. The charge tube is also known to blow out on Level 3 or higher, so our high flow one is included. Lastly, our high flow post-airbox intake tube is included and available in 2 versions. First is the standard version (great for Level 2-3), then we have the catch can version (suggested for Level 4-6).
• 2021-Up Kit Includes: AA Big Turbo (includes AA billet wastegate, new cylinder head to turbo gasket, exhaust outlet bolts, and drain tube o-ring), PV3 Tuner, S3 Clutch Kit, Butter Shift Washers, Clutch Limiter, Billet BOV w/Filter,

  Product Fitment