MAR 6 - Revised so this should better "clip" into the BMW fender liner
I made this part to replace a (normally $50) BMW part found on the e46 M3 - it's one of the supports for the plastic under-tray.
This part is a work in progress - I've printed the primary bracket, and it works well with lots of support laying on its side. I haven't been gutsy enough to try printing vertically.
The model attached has extra triangular support not pictured.
I am unsure as to whether this will allow the fender liner to attach- the dimensions are identical to the BMW part, except for the thickness. This may not contort enough to affix the fender liners, but I can't test it since mine are snapped.
Amazon Basics ABS
Be sure to print in something robust like ABS, 100% infill as this is a structural part.