Formula Drift legal. We 3D scanned several E36 Chassis, to CAD design a brace that accounts for variations in older cars. Accurate laser cut plates and notched tubes are robot welded & powder coated. ~ Tie in your rear strut towers and subframe mounts for increased chassis rigidity ~ Help prevent damage to the strut towers and subframe mounts ~ Perfect pairing for our true coilovers, we’ve made the ultimate rear brace bar that was ~ After drilling the floor panel as shown in the site gallery, and bolting the feet down with included m12p1.5 30L bolts & m12/m14 flatwashers, the bar clamps the floor panel agaist the same structure inside the chassis that the rear subframe mounts are attached to. Entire installation can be done from the top without subframe removal. ~ Our solid subframe bushings have long hardware included that allows the brace and the solid bushing to be optionally mounted on the same long fastener.