Hi Flow Air Box Shelf / Pro-R 600 - 800 CFI Category_Default Category/SLED/Yamaha/Mountain Max '20+ This tool is a must

This tool is a must have for anyone who works on their own clutching

The slip-on muffler allows for the use of our quiet cap

10-SPK-301

2 7/16” high x 1 3/4” diameter measured from cylinder mounting surface

longer head studs and dowel pins that are included in the BMP Durability Kit

Hi Flow Air Box Shelf / Pro-R 600 - 800 CFI Category_Default Category/SLED/Yamaha/Mountain Max '20+ This tool is a mustA great modification to get more air and more power is to modify your airbox. Pull the cover off the box and inside you will find a shelf like the one pictured below. Remove this shelf replace it with our BMP High Flow Pro R Shelf. We found holes in the top side of the shelf like shown worked out the best; gaining you 3 horsepower through mid to peak. Some may think more is better and want to add holes in the bottom side of the shelf also. We advise