Aftermarket Assassins  Stage 1 Lock & Load Kit | 2022+ Pro R 4 Cylinder 

• Lock and load your Polaris Pro R 4 cylinder and get ready for some serious kick!  The Pro R is an awesome machine, but Polaris left a ton of room for improvement on the table.  This simple kit is the best way to wake up your Pro R as it comes with our proven ECU flash. The ECU flash adds some amazing horsepower from low end to high end RPM and really gives your machine that "snap" you're looking for.  Our AA Stage 3 clutch kit compliments the tuning perfectly by more efficiently transferring power to the wheels and ridding yourself of the very lazy factory clutching setup and poor belt grip.  We finish out the kit with our AA RZR Pro-R full exhaust (head pipe and muffler) and it's just what your machine needs!  We set out to produce an exhaust that looks great, sounds great and has adjustable sound levels while producing the most power possible.
• Kit includes AA ECU flash for 2022-Up RZR Pro R 4 Cylinder Models **Requires ECU to be sent in for programming/unlocking unless choosing to purchase ECU outright** , AA Stage 3 Clutch Kit with primary clutch limiter and butter shift washers, and AA Stainless Full Exhaust (head pipe & muffler).
• **Note:  Exhaust in main kit image is not correct. Please see image 3 for the correct exhaust as this kit now includes our center exit muffler with 3" cutout**
• Center exit exhaust with a chambered muffler.  This design uses your OEM tip/spark arrestor making it a very quiet exhaust with the 3" side dump closed with optional 3" Stealth Quiet Core.  Open up that 3" side dump and let it scream when you want to!  
• This center exit design with 3" cutout allows for wild and mild sounds in seconds by bolting/unbolting the 3" Stealth Quiet Cap, or the flip of a switch if you choose to upgrade to the electronic cutout. 
• Looking for the best/most badass ECU tuning available for your RZR Pro R?  AA's performance tunes are now available to gain horsepower and torque.  Through our advanced ECU tuning we are able to modify parameters correctly to gain you the power needed.  We are highly experienced in tuning RZRs and this will show.
• The Pro R uses a new Bosch MG1 ECU.  Currently no programmers like the PV3 are available that flash without first having the ECU unlocked. The HP Tuners Remote Tuning Device (RTD) allows the ECU to be flashed remotely at any time using the AA/HP Tuners RTD and your smartphone once the unlock process has been completed from AA.