GSC Power-Division billet R2 camshafts for the Toyota Supra 2JZ-GTE. The R2 camshafts are designed for those running single turbos larger than 76mm. These camshafts will not have bottom end losses over our S2 cams; nothing but gains will be seen and will promote great peak power gains. Designed for a rev range of 5,000-9,500 RPM's. These cams do require an upgraded valve spring set such as our Conical Spring kits (GSC5064 or GSC5066) along with shim-less buckets/tappets and head clearancing for lift.