This is what Grimm told me before I bought Ulmers clutch kit.
"Great kit, I originally bought it for my Vector, but it transferred over without problems to my Nytro. Due to my size, I was burning through belt after belt until the clutch kit straightened everything out. Acceleration improved, but more importantly, no more belt slip like stock. I didn't notice any change in gas mileage, but noticed improved power throughout the powerband. Top speed wasn't my goal, just more efficient clutching.
I gave Ulmer a call and he offered advice on what settings to use to do the switch settings from the Vector to the Nytro.
You are not only just buying a well tuned product from the get go, but you are also getting the service from the seller."