Does anyone have experience with these rings in a motor that sees a lot of street driving? I'm leaning toward using these, but don't want to sacrifice a lot of longitivity. If these rings go away a lot faster than a standard plasma moly, then I guess I'll stick with the plasma moly. BTW, the motor will see approx. 300-350 h.p. of n2o and a lot of street crusing. Thanks for any responses.