GSC Power-Division Billet 2JZ-GTE S2 Camshafts (gsc7030S2) 40050 5-10 GM Sierra 2500HD/3500HD 6

5-10 GM Sierra 2500HD/3500HD 6

2 1999 Chevrolet Corvette Engine: 5

Failing Tensioner/ Idler Pulley(s)

fitment and will last the lifetime of your vehicle

Dyno-Proven Gains up to +18 HP & +21 Lbs

GSC Power-Division Billet 2JZ-GTE S2 Camshafts (gsc7030S2) 40050 5-10 GM Sierra 2500HD/3500HD 6GSC 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, reshimming, and tuning. These cams require upgraded valve springs, but