A Bolt on replacement for the troubled Z1 JAG turbo! All parts and bushings can be replaced and serviced. We have added an option of a billet roller cover available in anodized red or natural finish. All other Tuners supplied with factory cover as shown above. See pricing below All new complete billet secondary for the diamond drive. A simple bolt on that utilizes the old style OEM Arctic Cat helixs (1981 thru 2004) and springs providing a much wider variety of tuning options. The TUNER is made from T6061 aluminum and heat treated steel hub and towers. The movable sheave has reinforced towers for the higher HP applications when needed. It also has a belt deflection adjuster (no shims needed) and non wearing rollers. The TUNER is available in 10.6, 11.0 and 11.25 diameters (Specify when ordering). The 11.0 diameter drops right in the F7 and ZR900. The 11.00 diameter drops right in the M&f-Series along with the Crossfire. The larger driven TUNER diameter wakes up the diamond drive creating better up shift and back shift. Testing results have given an OMG! response just by seat of the pants. This bolt on will give your DD a wake up call. We test all of our products and are convinced if you own a DD you will have a grin from ear to ear when you pull the trigger with a TUNER. We now have the TUNER for the RX1, Warrior,and Apex, and Polaris. Tuner Reverse Upgrade - Do it yourself up-grade kit $88.00 or send it in to us up-grade $150.00. Billet Roller Cover - $100.00 natural finish - $120.00 red anodized finish.