These upgraded bumper guides (Support Fender as BMW calls them) help precisely position your front bumper.
These brackets allow for an additional 3mm of adjustment and also have a hole for a screw or other fastener to be used to more rigidly locate the front bumper (which is held from the inside and not visible on the exterior.)
Fits all E46s, including M3.
Replaces BMW Part Numbers: 51118195295 & 51118195296
Sold as a pair (left and right)