We tested R&Ds new performance package for the legal Pro Stock Sea-Doo RXP-X 2012 and we were really amazed by the overall performance. By using simple bolt on parts, a R&D reprogrammed ECU and an upgraded cooling system the boat clocked consistently 78mph early in the morning in Lake Havasu City. The boat accelerated greatly from standing still and it pulled harder at mid rpm even while turning through high speed sweepers. The complete story will be published next week featuring the list of R&Ds parts and the full review of the tests and stages the company went through the development of this Pro Stock (and recreational) Tune Up kit.
