Polaris RZR RS1 TFI Power Box

Big Gun Exhaust

Polaris RZR RS1 TFI Power Box

Sale price$329.99
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This product is not ARB / CARB compliant and cannot be sold in the state of California.


  • Increases horsepower and throttle response
  • Installs in minutes
  • Third generation technology
  • No computer needed to adjust EFI
  • Plug-in technology (Does not interfere with stock ECU map)
  • Integrated faceplate buttons provide easy adjustment
  • Highly recommended for any EFI unit with aftermarket exhaust
  • 1 Year Limited Warranty

NOTE: 2-3 week lead time

  • Polaris RZR XP 1000 (2018-2019)
  • Polaris RZR RS1 (2018-2021)