AA RZR XP Turbo & Turbo S Big Turbo Tunes for RTD ECU Flash Device

Aftermarket Assassins Big Turbo Tunes are tune files for a 2016 to 2021 Polaris RZR XP Turbo or Turbo S running a larger turbo or a modified OEM turbo. They are for riders who already own the HP Tuners Remote ECU Tuning Device (RTD).

Why it holds up

• Built to work with DynoJet, Silber, Agency, Pro XP and Boondocker turbos, and turbo mods such as the Dominator
• Modifies all the maps needed for big power while keeping the RZR reliable
• Stock like driveability
• Up to 305 crank HP with supporting mods
• 10 to 15 RWHP more than the factory turbo on pump gas tunes

Fits

• 2016 to 2021 Polaris RZR XP Turbo
• 2018 to 2021 Polaris RZR Turbo S

In the box

• AA big turbo tune files for an existing HP Tuners RTD device. The device is not included.

Good to know

• Include your wastegate crack pressure (the PSI at which the wastegate actuator arm begins to move) with your order.
• Flashing through the TDN phone app uses 2 credits. Flashing through VCM Editor (laptop, MPVI2/3/4 devices only) uses 4 credits.
• Tunes require the AA Billet Wastegate Actuator (7 to 18 PSI) with its standard spring, set to 7 PSI for Pro XP style turbos or 10 to 12 PSI crack pressure for other turbos.
• Tunes are built only for OEM injectors or AA 1200cc injectors.
• Tunes are sold as is. Because turbos vary, a custom setup may need small adjustments for overboost or underboost codes, made after reviewing data logs.
• 2016 to 18 models all have the black narrowband O2 lead. 2019 to 20 models have either the black narrowband lead or the blue wideband lead, and wideband models will not do an ECU read. 2021 models all have the blue wideband lead.
• 2019 to 21 wideband models normally do not need a fuel pump upgrade. The OEM pump works fine even on E85.
• Level 2: 17 to 18 PSI on 91 octane, 170 to 175 RWHP.
• Level 3: 18.5 to 19 PSI on 91 to 93 octane, 180 to 185 RWHP.
• Level 3.5: 19.5 to 20 PSI on 93 octane minimum, 190 to 195 RWHP.
• Level 4: 23 to 24 PSI on 98 to 100 octane, 215 to 220 RWHP. Requires tightened stock head bolts or ARP head studs and the pre airbox intake tube.
• Level 5: 25 to 26 PSI on 110 octane, 240 RWHP on the AA dyno. A spare O2 sensor is suggested when running leaded fuel.
• Level 6 E85: 25 to 26 PSI on 70 to 85% ethanol, 240 RWHP. Requires AA 1200cc injectors (included with Level 6) and the AA high flow fuel pump. Choosing Level 6 builds all tunes for 1200cc injectors.
• Supporting mods for all levels: AA high flow intake tube, AA high flow charge tube, AA S3 clutch kit, AA blow off valve and a free flowing slip on exhaust. Power figures are with the AA exhaust and no quiet core.