Aftermarket Assassins ’20-’25 RZR Pro XP AA Custom Tunes CX, 3 & 4 For Power Vision

• AA tunes for all 2020-25 RZR Pro XP/Turbo R/Pro S models including Dynamix models with Stock turbo. If you have a modified turbo or aftermarket bigger turbo please see our big turbo tunes.
• Are you looking for the most badass tunes available for your Power Vision and Pro XP? Here you are! These tunes are for customers that already have the Power Vision for the RZR Pro XP/Turbo R/Pro S. If you are looking to tune two vehicles with your Power Vision 3 (Not applicable to PVCX or PV4) please read this page thoroughly before proceeding. If tuning two vehicles with your Powervision 4, the app will prompt you to purchase a License for the additional vehicle. We are highly experienced in tuning the RZR models and that will show. Our tunes are also easily labeled and will show rough horsepower claims with supporting mods such as exhaust and clutching. These tunes modify all the necessary maps to create big horsepower, while still maintaining a reliable and safe RZR. Each tune is built specifically for your Power Vision allowing us to change the tire size or other features if needed. We need you to send your PV_INFO file to us before we can send the tunes. For more information on how to get this, see the below description, or this VIDEO (PV3 only in video)
• The Pro XP Turbo/Turbo R/Pro S is an animal waiting to be unleashed. This models uses a factory upgraded turbo able to create more boost at lower temps quite like our turbo mod for the earlier version RZR XP Turbo. This allows us to push the limits further with just a tune. Several improvements including stronger head bolts allow the motor to handle the extra boost.
• Big horsepower gains depending on the level of tune desired
• Quicker throttle response and power delivery
• Throttle by wire limiters disabled
• Fan on/off at 185 Fahrenheit (Stock is 190). The fan also ramps up in power quicker to keep you running cool.
• Optional Start in Any Gear! Does not need to be in park to start. Will start without brake but may throw a code. Press brake to start until we/DynoJet figure this issue out. Keep in mind this is removing a safety feature.
• Seat belt limiter disabled
• Speed limiter removed in low and high gears
• More throttle % and boost in low gear and reverse
• Rev limit at a safe 9300 RPM
• For reference; a Stock machine will dyno at 156-158 rear wheel horsepower (RWHP), 181 crank HP per factory
• Tune levels 1-4 are developed on the stock wastegate setting with stock injectors. Tunes 5 & 6 are only available with our 1200cc injectors & require adjusting your wastegate rod. We also offer all tune Levels 1 through 6 designed for the 1200cc injectors & WG rod adjustment.
• Level 1 (91-93 Octane): Tune is a modified stock power level tune but has better boost maps to help keep you in the power. We disable many limiters, raise the speed limit, rev limit, and make necessary fuel & timing changes. We maintain the max factory boost of 16.5-17 PSI.
• No wastegate adjustment required.
• Level 2 (91-93 Octane): Tune offers 17.5-18 PSI of boost with a 10-12 RWHP gain. This tune rips and can be used on a bone stock RZR in most cases.
• Suggested Mods: Billet blow-off/diverter valve and pre-airbox intake tube (2020 models), clutching helps transfer the power to the wheels much more efficiently. This tune can also be used with exhaust, charge tube, and intake tube.
• No wastegate adjustment required.
• Level 3 (91-93 Octane): This tune is a game changer! Hitting hard with a gain of 20-25 RWHP, this tune offers the highest boost possible (18.5-19 PSI) on 91-93 octane fuel. Due to the upgraded Pro XP turbo with higher exhaust flow and more efficient compressor housing, we can get away with higher boost on pump gas. These are absolutely huge power gains that will have you grinning from ear to ear. This tune is built to be a max tune on 91-93 octane. If you only have access to 91 octane and fuel quality is poor or you’ll be running really hard that day, we’d suggest using a small amount of race gas or octane boost to bump your octane. This helps prevent engine knock which causes the ECU to retard your timing curve resulting in a slight power loss.
• Required Mods: High flow pre-airbox intake tube (2020 models), exhaust, Billet BOV, S3 Clutch Kit.
• Suggested Mod: Charge Tube as we have seen them fail on this level.
• No wastegate adjustment required.
• Level 3.5 (93 Octane): For those wanting the absolute most out of what is achievable on pump gas – +30-35 RWHP at 19.5-20 PSI. This tune requires a minimum of 93 octane and all required supporting mods listed below.
• Required Mods: High flow pre-airbox intake tube (2020 models), exhaust, Charge Tube, Billet BOV, S3 Clutch Kit.
• Suggested Mod: Post-airbox intake tube WITH catch can
• No wastegate adjustment required.
• Level 4 (98-100 Octane): Beast mode – 200 RWHP! This tune is designed for 98-100 octane (will run on UTV 96, or most fuels up to 110 octane) and was developed using one can of VP Octanium to a tank of fuel. Mixing other race fuel with the tune to get 100 octane output would work great, just keep in mind consistently using leaded fuels can result in premature failure of O2 sensors. Now for the fun part…. this tune is INSANE and brings your Pro XP to a new level at 197-200 RWHP on our dyno. This tune gains 40-43 RWHP and pushes the boost level to 23-24 PSI peak before settling at 22-23 PSI. Keep in mind the Power Vision boost only reads to 22-23 PSI (depending on your altitude) so it will be close to maxing out the gauge. The ECU still has vision above that, but you won’t be able to read it without a manual gauge.
• Required Mods: High flow pre-airbox intake tube (2020 models), exhaust, Charge Tube, Billet BOV, S3 Clutch Kit.
• Suggested Mod: Post-airbox intake tube WITH catch can, torque head bolts tighter with 120 degrees more rotation.
• No wastegate adjustment required.
• Level 5 1200cc Injectors (108-110 Octane): Beast mode times x2 – 210 RWHP! This tune is designed for 108-110 octane Now for the fun part…. this tune is INSANE and brings your Pro XP to a new level at 210 rear wheel hp on our dyno. This tune gains 50-55 RWHP and pushes the boost level to 24-25psi peak, then settles to 23-24 PSI. Keep in mind the Powervision boost only reads to 22-23psi (depending on your altitude) so it will be close to maxing out the gauge. The ECU still has vision above that, but you won’t see it without a manual gauge. There are other problems with this tune…. the speedometer struggles to keep up with the wicked acceleration and the tires won’t stop burning off!
• Required Mods: High flow pre-airbox intake tube (2020 models), exhaust, post-airbox intake tube WITH catch can, Charge Tube, Billet BOV, S3 Clutch Kit. Torque head bolts tighter with 120 degrees more rotation.
• Wastegate Crack Pressure: 6.5-7 PSI (This requires shortening your wastegate rod as short as possible)
• Level 6 1200cc Injectors: Beast mode x3 – 215 RWHP! This tune is designed for E-85 fuel. Now for the fun part…. this tune is simply stupid and brings your Pro XP to a new level at 215 rear wheel hp on our dyno. This tune gains 55-60 RWHP and pushes the boost level to 24-25psi peak, then settles to 23-24 PSI. Keep in mind the Powervision boost only reads to 22-23psi (depending on your altitude) so it will be close to maxing out the gauge. The ECU still has vision above that, but you won’t see it without a manual gauge. There are other problems with this tune…. the speedometer struggles to keep up with the wicked acceleration and the tires won’t stop burning off!
• Required Mods: High flow pre-airbox intake tube (2020 models), exhaust, post-airbox intake tube WITH catch can, Charge Tube, Billet BOV, S3 Clutch Kit. Torque head bolts tighter with 120 degrees more rotation.
• Wastegate Crack Pressure: 6.5-7 PSI (This requires shortening your wastegate rod as short as possible)
• Max boost levels are listed as reference only. Altitude, temperature, charge temps, intercooler temps and many other conditions play into a factor of final boost output. AA tunes do a better job of making sure you reach these levels as the factory tunes are overly safe, and have the EPA to deal with.
• Tunes are said to “Ship for free” but will actually be e-mailed over to you within 24 hours of placing your order (Weekdays only).
• Not good with computers? No problem. Simply send us your Powervision (PVCX/PV3 only) and we’ll install the tunes for $25 which includes the shipping back to you.
• PV3 Users to send PV_INFO: To get your PV_INFO number simply plug your Powervision into your computer (No software is needed and this will work on an Mac or Windows computer) using the supplied mini USB cord. Wait for the POWERVISION device to pop up as a drive. Once it pops up, open the folder for this device. Inside the folder for the POWERVISION you will see a PV_INFO file which will need to be attached into an e-mail and sent to [email protected]
• PV4 Users to send PV_INFO: With your PV4 connected and app open on your phone, Hit “Scan” to search for your connected PV4. Tap on the “Dynojet PV4”. Your Connected Vehicle should show your VIN and ECU information. (Verify this information matches your vehicle) Select the share icon next to “Connected Vehicle”. Select your e-mail app (Gmail, Yahoo, etc.). This will open a new e-mail with the attached PV4/ECU information. In the “To” line, fill in with [email protected] . In the “Subject” line, fill in with your name & invoice #. Please note that if your e-mail associated with your PV4 account is different than the e-mail you are using to send the info, please make special note of this and attach the e-mail associated with your PV4 account. Send the e-mail and await further instructions when we send your tune file(s).
• PV3 Users to download tune(s): Simply download the tunes from the e-mail we send and find where they are located (usually the DOWNLOADS folder). Copy the tune files by highlighting them and plug your Powervision into your computer using the supplied mini USB cable. Wait for the POWERVISION to connect and open the POWERVISION drive. Then simply copy the downloaded AA tunes into the main POWERVISION folder with the rest of your supplied DynoJet tunes.
• PV4 Users to download tune(s): Open the Power Vision 4 app on your phone. If you currently have the app open when we send the tune(s), you will need to completely close out of the app and re-open it. At the top should be a “There are shared invitations” notification. Tap on this. Tap on “Accept” to accept the tune(s) from Aftermarket Assassins. Tap on “Tunes”. The new tune(s) will now be listed at the top under “My Tunes”. DynoJet’s tunes will be listed below (If applicable for your model). Tap on the tune that you want to flash. Tap “Flash Tune” If a License is needed for your vehicle, a “Redeem token” message will appear. Click “Yes” if you wish to purchase and redeem a License token for your vehicle.
• Tunes are password protected so you will not be able to open or view them in the C3 tuning software**. This keeps our tunes protected from copying, and gives us a good reason to keep putting in the time to make the best tunes out there!
• 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.
• If you have any other needs in these tunes, or any concerns; please e-mail!
  Oh… and get ready for your RZR to flat out rip!