Aftermarket Assassins ECU Flash for Polaris RZR Pro R 4 Cylinder

Details

AA ECU flash for 2022 RZR Pro-R 4 Cylinder Models **Requires ECU to be sent in for programming**
Works with all models including ones with Dynamix and/or evap models.
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 RZR's and this will show.
AA's wicked timing curve is safe for the fuel used, but we do a much better job of finding timing limits for ramp up/more torque. Many others simply focus on wide open throttle timing/fueling.
AA's modified fuel curve will still get decent mileage cruising, but is corrected over the factory lean AFR when needed.
- Level 1 Tune: This tune can be run on a bone stock Pro-R on 91-93 octane fuel. This tune adds +10-11rwhp (15-16 crank horsepower) putting you at roughly 240 crank horsepower with just a flash! We would highly suggest our clutch kit with this tune to help with belt grip and gain additional low to mid range power. This tune can be run with an aftermarket exhaust without any issue, but our level 2 tune is the best option for aftermarket exhaust as it's slightly richer for more power.
- Level 2 Tune: This tune is developed for a Pro-R with aftermarket exhaust on 91-93 octane. It has just a bit more timing and a bit more fuel over level 1. This tune adds +16rwhp peak and a massive +19rwhp at 38mph (This is gaining roughly +25 crank horsepower) putting you at roughly 250 crank horsepower with just a flash and exhaust! We would highly suggest our clutch kit with this tune to help with belt grip and to help drive the extra power to the wheels. Due to how these motors/tuning works, this tune should work with about any aftermarket exhaust, but was tested and designed with our AA slip-on exhaust (header now available).
If you're unsure if your Pro-R is an EVAP model or not, check your Emissions Control sticker located on the front driver's side frame rail above the master cylinder. See pictures for location.
More tunes coming soon!
The ECU is located behind the passenger (rear passenger if 4 seat) seat. Remove the top panel behind the seats, then remove the fabric panel to expose the ECU. Remove the torx bolts and ECU connectors.
*** ECU MUST BE SENT IN FOR PROGRAMMING: Aftermarket Assassins, 2348 75th Ave, Osceola, WI 54020 ***
Customer is responsible for shipping to AA, a shipping label is not included in the price
Programming turnaround will vary, but is normally 1-2 days.
Express ECU service for US main 48 states only. We'll send you a next day UPS label, and ship your ECU ONLY back via next day. All other pats will be shipped ground unless otherwise specified/selected during order checkout. Keep in mind we cannot guarantee same day programming or control UPS shipping times/delays. We will do everything possible to turn the ECU around as fast as possible.
When the ECU arrives we'll read your stock file to determine if it's a EVAP model or standard, and we'll keep a file folder for your stock/tune files. We'll then flash with the correct AA tune.
If you ever need to go back to the OEM tune we charge $95 which includes shipping back to you (shipping back for lower 48 US only). Please contact us if you need to go back to your OEM tune.
MAKE SURE you insure your ECU for $700. AA is not responsible for shipping delays or lost ECU's. While more expensive over Priority Mail or Fedex, UPS has been the most reliable carrier in our experience.
Why AA tunes over others? We have been tuning UTV's with CVT clutches for a long time, longer than almost anyone in our field going back to the 800 RZR. Tuning a CVT vehicle properly is not an easy task as you have so many variables at one time. We spend the time to wheel dyno(with actual UTV tires) correctly per modification, and have advanced ECU calibration and clutching knowledge to do so. Every change in horsepower can result in us changing clutching several times. We also develop most of our supporting mods so we know everything works correctly, and build parts to fit the vehicles needs. Lastly and honestly the most important; we then back up our results with real world data logging on local trails and our facility on 110 acres. It's this combination that truly makes the difference and why AA normally has a faster vehicle with the same or less rated tune horsepower. We left nothing on the table on the Pro R bolt-on parts, if others claim more power/gains for the same mods use caution in believing it!

Reviews

Write Your Own Review

You're reviewing:Aftermarket Assassins ECU Flash for Polaris RZR Pro R 4 Cylinder

Your Rating

Rating

1 star 2 stars 3 stars 4 stars 5 stars

Nickname

Summary

Review

Add your photo

Shipping

All items ship within 24-48 business hours or you will be contacted. All shipments will arrive UPS or FedEx ground, select shipments will arrive USPS. All shipments over $150.00 USD will be free to the lower 48 US States.

Return and warranty

Returns accepted within 30 days of the original purchase receipt. Any item shipped and not defect or have a mistake on our part will incur a restocking fee and cover return shipping. The restocking fee would be deducted from your refund.