Replaces 48MM, use existing sensors and linkage, direct bolt on. CNC'ed billet 6061 Aluminum, bronze bushings,nickel plated shaft, and prcision fit to ensure perfect idle. Users have made over 50 HP gains over the 48MM throttle valve. $435.00 If you don't see what you're looking for please call or e-mail us. Phone: (480) 753-0208 Fax: (480) 753-0216 Hours: 8am - 5pm M-F Mountain Standard Time