E46 Specialties is our company and we specialize in rebuilding ZF yellow tag steering racks & purple tag racks, LF-30 (LUK raised back/ZF flat back) or LF-20 power steering pumps, welding differentials, stitch welding chassis, repairing infamous RACP/Subframe cracks while reinforcing the area. We also rebuild vanos systems, m54 motors and can do anything related to e46s, just let us know what you need done. Been working on drift cars, drag cars, track cars, and simple enthusiast builds for 4 years and stand behind our products.