Your search for "Spherical Inserts" revealed the following:
BMW F8X M3 & M4 2014 to Current Sport Camber/Caster Plate
$659.00
Ground Control BMW F8x M3 and M4 SPORT Camber Plates These plates feature over 30mm of total camber adjustment with the ability to make corrective caster changes to equalize side-to-side caster in the stock position.Other features include replaceable waterproof German axial load bearings, and isolated aerospace grade strut bearings for long...
BMW E46 Camber/Caster Plate-Sport XI (Pair)
$499.00
Ground Control Sport Camber / Caster Plates This a high quality, complete replacement for the e46 upper mount, this product is not the style that is bolted between and raises the car. This is a camber/caster plate for the e46 NON M3 (for e46M3 click here). Camber is adjustable through a...
$499.00
These plates feature over 23mm of total camber adjustment (16mm negative/7.5mm positive), with the ability to make corrective caster changes to equalize side-to-side caster in the stock position.Other features include replaceable waterproof German axial load bearings, and urethane bushings for long life, less deflection, and a smooth silent ride on...