K&T Performance Turbo Z1K&T Performance Turbo Z1 at SxS Wars in DumontWhen K&T Performance committed to race at the 2015 Dumont SxS Wars, they went full-tilt. With just a few weeks left before the race, they decided to build a big horsepower RZR with a Z1 swap to compete in the Unlimited class. There are two big classes that everyone watches, the1000cc and up with power adder and the Unlimited with being the holy grail.