I've never heard of them, but what does the manufacturer suggest using?
There are some super-strong 3M tapes these days.
https://www.3m.com/3M/en_US/p/c/tape.../i/automotive/
BMW attaches stuff with Betalink - it does the job but can be next to impossible to remove. Use the tape if you plan on removing the parts in the future.
https://www.bimmerworld.com/Body-Aer...stall-Kit.html
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2015 BMW 228i in EstorilBlau II Metallic / Terra Dakota Leather - 6-speed manual, M Sport Package, Cold Weather Package, Lighting Package, Premium Package, Harman Kardon premium sound, Anti-theft alarm system, Blue Metallic Matt Accent Moldings, Aluminum Hexagon Interior Strips, Anthracite Headlining