The R&D Racing High Boost Supercharger Pulley Wheels for the 300X/310X will clearly deliver an impressive boost in torque and overall horsepower. The R&D Pulleys are designed and manufactured from high quality billet aluminum and precision hard anodized for superior belt wear resistance. The R&D Pulleys are lighter than the O.E.M. steel pulley, and will delivers up to 4 lbs. of additional boost pressure. Expect up to 20-30 plus Horsepower gains (depending on Pulley choice). Holeshot acceleration performance is super impressive with a solid 1.5-2 boat lengths gain over stock and additional 2-4 MPH top speed gains over the stock pulley. Seriously Impressive results! The R&D Pulleys are available in two boost ranges (RDP-16, and RDP-18). The RDP-16 will deliver 16 pounds of boost at 8000 RPM, and up to 16.5 at 8200. The R&D Pulley comes complete with all necessary hardware and installation instructions, as well as compatible parts upgrade suggestions and R&D ECU Program recommendations. R&D strongly recommends the install and use of the R&D Pulley Wheel Reprogrammed ECU Packages or the R&D Powershot Fuel Tuner when using the R&D Supercharger Wheels to have the proper AFR Calibrations. Not using the recommended ECU Package, R&D Powershot, or R&D High Volume Fuel Pump Kits with the R&D Supercharger Wheel can result in engine damage due to a lean air fuel ratio. Call R&D Today for tips and suggestions. 4-5 MPH top speed improvements with more boost (depending on package) Seriously noticeable acceleration performance improvements Super easy to install Uses O.E.M belt tensioner assembly Significantly improved cornering with more engine torque Drives through chop with superior power authority Utilizes all oem engine internals Pt. # 611-30016 RDP-16 Supercharger Pulley Wheel/Ratio .970 to 1 (16-17 LBS Boost) $349.95 Pt. # 611-30018 RDP-18 Supercharger Pulley Wheel/Ratio 1.021 to 1 (18-19 LBS Boost) $349.95
