exhaust spring bases

This unique device allows for quicker changes of maximum engine speed to OPTIMIZE HORSEPOWER OUTPUT

weighs 11 lbs

You also have the option to go with our torsion conversion kit which also includes our torsion spring cup

Peak RPM @ 55 MPH

Hi Flow Air Box Shelf / Pro-R 600 - 800 CFI Category_Default Category/SLED/Arctic Cat/F6 '07-10 exhaust spring basesA 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