Engineered for early spool and a healthy 64lb/min compressor flow , EFR 7670 is ideal for road racing and time attack applications, as well as responsive street driven vehicles. BW utilizes their 70mm Gamma-Ti turbine wheel as the optimal match for the 57.2mm inducer / 76mm exducer FMW compressor with unmatched response. This turbo uses the mid-size EFR ported-shroud compressor housing, great for fitment in cramped engine bays. Ideal for use in single turbo applications for the 400-600hp range (up to 2.8L), or as twin turbo applications 800-1200+hp. Ceramic Ball Bearing only, watercooling recommended.