Description
Features
- Gains 9-10 horsepower peak
- Big mid-range to peak horsepower gains
- Fits into BMP mufflers or the stock muffler
- Easy bolt-on performance
- Comes with 2" stinger designed for sea-level elevation
- Premium pump fuel is required
- Ceramic coated finish
| Position | Notes | |||
|---|---|---|---|---|
| 2019 | Polaris | 850 PRO-RMK 174 | - | - |
| 2019, 2024 | Polaris | 850 PRO-RMK 155 | - | - |
| 2020 | Polaris | Rush 850 Pro-S 1.25" w/120" Track | - | - |
| 2020-2023 | Polaris | Indy 850 Adventure 1.50" w/137" Track | - | - |
| 2020-2022 | Polaris | Indy 850 Adventure 1.35" w/137" Track | - | - |
| 2019, 2024 | Polaris | 850 INDY XC 129 | - | - |
| 2023 | Polaris | Indy 850 XCR 1.6" w/128" Track | - | - |
| 2020-2023 | Polaris | Indy 850 XC 1.25" w/129" Track | - | - |
| 2022-2023 | Polaris | SwitchBack 850 Assault 2" w/146" Track | - | - |
| 2021 | Polaris | SwitchBack 850 Assault 1.60" w/144" Track | - | - |
| 2019 | Polaris | 850 SwitchBack Assault 144 | - | - |
| 2019-2021 | Polaris | RMK 850 SKS 2.25" w/155" Track | - | - |
| 2020-2021 | Polaris | SwitchBack 850 Assault 1.35" w/144" Track | - | - |
| 2019-2021 | Polaris | RMK 850 SKS 2.25" w/146" Track | - | - |
| 2019-2021 | Polaris | Pro-RMK 850 2.6" w/163" Track | - | - |
| 2020 | Polaris | Pro-RMK 850 3" w/174" Track | - | - |
| 2020-2021 | Polaris | SwitchBack 850 Pro-S 1.25" w/137" Track | - | - |
| 2021 | Polaris | 850 INDY XC Launch Edition 129 | - | - |
| 2021 | Polaris | 850 INDY VR1 129 | - | - |
| 2023 | Polaris | Indy 850 XCR 1.6" w/136" Track | - | - |
| 2022-2023 | Polaris | Indy 850 VR1 1.50" w/137" Track | - | - |
| 2022-2023 | Polaris | Indy 850 VR1 1.25" w/129" Track | - | - |
| 2023-2024 | Polaris | 850 SwitchBack XC 146 | - | - |
| 2022-2023 | Polaris | SwitchBack 850 Assault 1.60" w/146" Track | - | - |
| 2021-2022 | Polaris | SwitchBack 850 Assault 1.35" w/146" Track | - | - |
| 2019 | Polaris | 850 SwitchBack XCR | - | - |
| 2020-2022 | Polaris | Indy 850 XC 1.35" w/137" Track | - | - |
| 2024 | Polaris | 850 INDY XC 137 | - | - |
| 2020-2023 | Polaris | Indy 850 XC 1.50" w/129" Track | - | - |
| 2020-2022 | Polaris | Indy 850 XC 1.35" w/129" Track | - | - |
| 2020-2023 | Polaris | Indy 850 XCR 1.25" w/128" Track | - | - |
| 2020-2023 | Polaris | Indy 850 XC 1.25" w/137" Track | - | - |
| 2022 | Polaris | Indy 850 VR1 1.35" w/137" Track | - | - |
| 2022-2023 | Polaris | Indy 850 VR1 1.50" w/129" Track | - | - |
| 2024 | Polaris | Patriot Boost SwitchBack Assault 146 | - | - |
| 2023 | Polaris | Indy 850 XCR 1.25" w/136" Track | - | - |
| 2022-2023 | Polaris | Indy 850 VR1 1.25" w/137" Track | - | - |
| 2023 | Polaris | Patriot Boost Switchback 850 Assault 2" w/146" Track | - | - |
| 2020-2021 | Polaris | SwitchBack 850 Assault 2" w/144" Track | - | - |
| 2020-2021 | Polaris | Pro-RMK 850 2.6" w/155" Track | - | - |
| 2020-2021 | Polaris | SwitchBack 850 XCR 1.25" w/136" Track | - | - |
| 2020, 2021, 2023 | Polaris | Indy 850 XC 1.50" w/137" Track | - | - |
| 2022-2023 | Polaris | Indy 850 Adventure 1.25" w/137" Track | - | - |
| 2021, 2024 | Polaris | 850 INDY VR1 137 | - | - |
| 2022 | Polaris | Indy 850 VR1 1.35" w/129" Track | - | - |
| 2022 | Polaris | SwitchBack 850 XC 1.35" w/146" Track | - | - |
| 2024 | Polaris | 850 SwitchBack Assault 146 | - | - |
| 2019 | Polaris | 850 Rush PRO-S | - | - |
| 2020-2021 | Polaris | Indy 850 XCR 1.75" w/128" Track | - | - |
| 2021 | Polaris | 850 INDY XC Launch Edition 137 | - | - |
| 2023 | Polaris | Patriot Boost Indy 850 VR1 1" w/129" Track | - | - |
| 2022 | Polaris | SwitchBack 850 XC 1.60" w/146" Track | - | - |
| 2020-2021 | Polaris | SwitchBack 850 XCR 1.35" w/136" Track | - | - |
| 2019 | Polaris | 850 SwitchBack PRO-S | - | - |
| 2020-2021 | Polaris | Indy 850 XCR 1.35" w/128" Track | - | - |
| 2020 | Polaris | Indy 850 Adventure 1.25" w/137" Track | - | - |
| 2022 | Polaris | 850 INDY XCR 136 | - | - |
| 2023 | Polaris | 650 PRO-RMK 155 | - | - |
| 2019 | Polaris | Rush 850 XCR 1.35" w/121" Track | - | - |
| 2019 | Polaris | Rush 850 XCR 1.75" w/121" Track | - | - |
