- The ultimate power booster
- Improved bottom to mid-range power
- Produce the low end of a longer header and the top end of a short header
- Less susceptible to damage than a long header
- Effectively reduces sound output by as much as 1.5 dB
- Run well with sound-restricting mufflers
- FITS - 2019 Yamaha YZ 450 FX, 2019 Yamaha WR 450 F, 2018-2019 Yamaha YZ 450 F