2008 GTX 215 Upgrades

[blueprint83]

I want a few more MPH. just to get me above 70mph. What can I add to the ski while keeping it as stock as possible? I don't want any heavy engine modifications or risk voiding the extended factory warranty.
Thanks,
-Chad

 

[sporsterjoel]

An R&D intake grate should get you to 70 no problem and i think there around $200