There was a thread somewhere that said to NOT use Plexus. I would try to find that before using it... one of the installers or someone who knew a lot about clear bras was very much against it.
2016 M2 | Long Beach Blue | 6MT - current
2015 M4 | Austin Yellow | DCT
2014 Corvette Stingray | Z51 | Torch Red | 7MT
2012 MB C63 Coupe | Performance package | Obsidian Black
2011 E92 M3 | Jerez Black | Fox Red | DCT | Competition Package