Thumbnail Filmstrip of Boost Insert - 10.5 Top Insert for XR1 Race Blower Images
Shoe , Insert , XR1-TBS XR Race Inserts are crafted from billet aluminum in an array of sizes.
Meant to change when boost is activated, a smaller opening boosts quicker and a bigger opening produces more boost on the top end. A quick way to tune your blower at the track, these inserts are available only for the race series blowers.
- 11" -10.5" -10" -9" -8" - 7" - 6" -5.5"