Modified E92 / E93 / E90 rear subframe that fits both Bulldog and Winters QC differentials. It comes with high grade/gloss powder coating. We have these in stock ready to ship. All our subframes are built by Kazakov Racing under our supervision guaranteeing you get one of the best products available! - option for 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)