DescriptionGSC Power-Division billet S2 cams for the Toyota Supra 2JZ-GTE. The S2 cams are designed for those running a large single turbo, larger than 71mm. These cams will not have bottom end losses over our S1 cams on the larger turbo; nothing but gains will be seen and will promote great peak power gains. Gains of 60-100 WHP (depending on turbo) have been seen by bolting the S2 cams in, re-shimming, and tuning. These cams require upgraded valve springs, but can be run on stock cylinder heads.Designed for a rev range of 4500-8500 RPMs800-1300 WHP camshaft setRougher than stock idle