The SDR Motorsports XPR-4 Fastback Sport Cage sets the industry standard for the best looking and strongest sport cage you can bolt The Fastback cage utilizes all six factory mounting points and includes a built in rear bumper and tail light guard for full protection! The Sport Cage system is designed to strengthen the existing chassis through the one piece fully welded structure vs. the multi piece bolt together OEM cage. All SDR Motorsports Sport Cages come complete and is hand fabricated from CNC laser notched and CNC-bent DOM steel tubing. SDR also CNC laser cuts, and precision bends the B-Pillar floor mounts and rear chassis plate from 3/16" plate steel, much thicker and stronger than the factory parts they replace. SDR also uses solid CNC machined cage mounting bungs that are designed to re-use all factory hardware. Front A-Pillar mounts feature a wiring pass through to allow for a clean wiring install through the cage tubes. All SDR Cages feature welded door hinge mounts to the b-Pillar allowing you to re-use your factory doors as well as the Hi-Bred Door system and most aftermarket bolt on doors. PLEASE NOTE: Fastback cages have limited rear seat roof height and are designed for shorter passengers in the rear seats. Maximum of 5 Foot -6 Inch is recommended. Please allow a min. of three inches of head room above the top of your helmet.