Modified E46 rear subframe that fits both Bulldog and Winters QC differentials. It comes with the high grade/gloss powder coating. We have these in stock ready to ship. Fits both coupe and sedan chassis. All our subframes are built by Kazakov Racing under our supervision guaranteeing you get one of the best products available! - POM (polyacetal) bushings. This material is as durable as the aluminium bushings most companies use but has much better shock proof sustainability allowing it to absorb deformation with high hysteresis characteristics along with it being much lighter! - option for Skid Plate (differential undercover protection) NOTE: on E36 and E46 mounting a QC diff always requires cutting the brace/bar between the two rear fastening points. Bracing the rear subframe mounting points to the roll-cage is mandatory. Whatever the case is if a brace is not present eventually the subframe will crack somewhere because the lack of bracing makes it hold the chassis together which the subframe on these chassis is not designed to do.