Procharger Supercharger kits are absolutely the most powerful and reliable supercharger systems available for your vehicle with expected gains of 50-80% more power over stock. The intercooled Procharger supercharger kit is great for street or strip vehicles and delivers the largest increase in horsepower and torque available from any supercharger system. Need more? Read all About ATI Procharger Superchargers at Beefcake Racing. Authorized Dealer with industry leading tech support and best prices, call 1-855-827-7223 from 9am-10pm EST.