Quarter Master is bringing race-winning clutch technology to the street with a new Optimum-SR 10.4-inch Two-Disc clutch for LS engines (street price $2,312.50). These clutches deliver a nearly stock pedal feel and are capable of handling 1,400 horsepower and 1000 ft.-lbs. of torque. They are currently offered for the C5 and C6 Corvette, Gen-V Camaro, Pontiac G8, and 2009 and newer Cadillac CTS-V, with more applications to come. Both the race and street versions feature a spring designed to require only a 10 percent increase in pedal effort over stock, with stock-type modulation control. The street version features sprung hub and marcel-type discs with organic rag-type friction for smooth engagement. A vented floater plate and grooved friction surfaces provide better cooling as well. Featuring aircraft grade bolts and hardware with an all-billet construction, each clutch is completely rebuildable and can be used with OE hydraulic bearing systems or Quarter Master Tri-Lite II Hydraulic Release Bearings.