Pair of front upper control arms extended 1.25" longer than stock C5 and C6 Corvette. Compatible with C7 when using our Forged Super Angle Knuckles. These are for use with our extended lower control arms. Thinner profile than stock arms for more steering angle clearance. Enough inside clearance for coilovers and for our airbag over damper kit. Adjustable steering angle stops prevent tires from contacting the arms and are specially modeled in CAD to prevent bump stop steering upon contact throughout full suspension travel. Made of Japanese DOM steel tube, 3.5mm wall. Hand Tig welded and 3 stage copper paint. PTFE lined maintenance free, low torque spherical bearings. Hardened Chromoly bearing side spacers. Compatible with OEM and aftermarket knuckle ball joint tapers. **Approx 1.25" longer than stock, so you will need extended lower arms to achieve proper camber. **INSTALL tip - check the gallery photo to identify which side of these arms faces front and rear. They aren't symmetrical.