Originally Posted by 808MGuy
There is a member here that was able to fit the Esotar 430 drivers in his E93 using just the standard type ring I made for the E90. The Esotars are only listed at 42mm deep though so he's probably right on the edge as far as clearance.
There is around 3-4mm from the grille mounting tab top to the edge of the door panel surface. If you press the speaker frame against the grill tabs hard enough you could gain another 1-2 mm... that's at the most 6mm extra in usable space between these 42mm Esotars from the 50mm deep Morels. Add the 8mm difference and there you go, no need to cut the tabs.