New for 2012 are the Granatelli Motorsports Butterfly Subframe Connectors (PN 500073) for all 2010-Present Chevrolet Camaros. Simply put, these triangular brackets connect the front and rear subframes together giving the car far superior structural rigidity. When used in conjunction with the Granatelli Motorsports G-Load Brace (PN 500075), the sub structure is now supported front to back and left to right. This potent combination largely eliminates unwanted body roll. The Butterfly Subframe