Our custom cut helix which will give you better power to the wheels on 2017-18 models because of the slightly steeper angle. On 2016 models you will see quicker RPM climb into peak power, and better belt life. All models will see a more consistent RPM sweep. Factory helixes start off steep, then go shallower on the top end. For turbo machines, this is completely backwards. We run a straight angle as changing the load on a heavy machine in the middle of a shift can cause some issues. Basically, 2016 helixes were too steep and therefor had belt issues, 2017 helixes went MUCH shallower and the performance to the wheels suffers. We found just the right angle to make everything happy with great belt life and great performance.
2016 XPT’s will need to upgrade to the 2017 buttons, which we have in stock.
S3 Clutch Kit: https://aftermarketassassins.com/pro…oil-clutch-kit
Thanks for looking and I’d be happy to answer any questions you might have!