RKP GTS High Wing Mount Set - BMW 4 Series F82 M4BMW's M4 GTS includes an aerodynamics package that reduces lift at high speed, and enables more confident driving on the race track. Unfortunately, because BMW has to appease the general buying public, and must comply with rear visibility guidelines, the rear wing on the GTS quite literally falls short of it's potential by being positioned quite closely to the boot surface. By being positioned only 6. 5" away from the boot surface, the GTS wing is