Have had the street fighter in my z71 for about an oil change now......its started slippin in over drive, and can not "bite down" near as good as it did when first installed. Had it dyno'd at mayhem motorsports in raleigh this morning....they said just a matter of time for shes done...shoulda got vig. tripple disc...has anyone else experienced similar problems? plus, their warranty sucks. having to pay for mine to be removed, shipped and fixed, and put back in, i want to get it back fixed, sell it, and find a vig in the meantime to put back in. anybody have a decent one for sale on here?