sorry to say i have to try out vipers warranty.working fine 1st and 2nd round.third round went out and checked in car came to stop it was all dead no thrittle or streerig switch would not turn on.sat in pits resoldered battery connections on speedo swtich worked.a main made couple laps to make sure all was ok.worked fine then 2minutes into the a main the speedo went up in smoke.hope their no trouble with warranty will find out.