- Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason
- Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression
- Specifically designed for the pro, semi-pro and amateur rider
- Freshens up their engine prior to a race or during mid-season
- Kits do not include valve stem seals, rubber part, shims or other fiber gaskets
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2021-2023 | Gas Gas | EX450 F | |
| 2021-2023 | Gas Gas | MC450 F | |
| 2022 | Gas Gas | MC450 F Troy Lee Designs | |
| 2016-2022 | Husqvarna | FC450 | |
| 2017-2019 | Husqvarna | FE450 | |
| 2017-2022 | Husqvarna | FS450 | |
| 2017-2022 | Husqvarna | FX450 | |
| 2016-2022 | KTM | 450 SXF | |
| 2016-2022 | KTM | 450 XC-F | |