Team This is Francisco Gonzalez , from FJ OFF ROAD SHOP, Division of FJ AUTO SERVICES, INC in Puerto Rico. We just installed two RIPP Superchargers , one in a 3,8 engine Jeep Wrangler and a 3.6 Jeep Wrangler, this RIPP XL Supercharger makes this 3.6 a complete OFF ROAD VEHICLE " FULL PERFORMACE IN THE ROAD " AND IN THE TRAIL . Instalation Time , seven to eight hours each and started at first time, well programmed and ready to GO ! What A PERFORMANCE IMPRESSIVE. The Instruction Manual is easy to ...