Planted Offset Aluminum Seat Side Mount Bracket - Grey425 Motorsport's Planted Offset Steel Side mount bracket is constructed from 1 4 inch thick aluminum, complying with the FIA's required side mount thickness. The offset bend of the bracket is ideal for installing a seat that is the same width as the floor mount. The universal design fits competition, side mounting seats from Sparco, Recaro, Racetech, OMP Cobra, Status, Bride, and probably many more! Meant for installation to aftermarket sliders, these