The GRS B100-4 4″ BMW replacement full-range driver pair is the perfect solution for dealerships, installers, and repair shops. The unique swappable mounting flange allows this speaker to replace virtually all 4″ drivers used in late model BMW vehicles taking all the guesswork out of which driver to order or stock for factory replacements and upgrades.
Exclusive adaptable frame design fits practically all 4″ drivers used in late model BMW vehicles
Woven fibreglass cone, rubber surround, and poly frame is weather and UV resistant
Powerful neodymium motor produces high efficiency with low distortion
Includes all gaskets and wiring harnesses needed for a drop in replacement
A true plug-n-play system and completely reversible