This mod of the day goes to M6G member 89Trooper (Tom) and his do-it-yourself installation of an underbody K-brace for his 2015 Mustang GT.
With the purchase and assembly of a few parts: the cross-member assembly (Ford part number FR3Z-5025-A) and plastic shield (FR3Z-6P013-B), and a few bits of hardware, Tom was able to fashion a K-brace for the underbody of his 2015 Mustang at little cost.
The added bonus? This modification results in easy access to the oil filter via the access panel.
Check out the full install in the forums.