Machining of the series struts is no longer necessary: KW Classic suspensions for BMW M3 (E30)KW Classic Coilover suspension kits are now available for all BMW M3 (E30) in Variant 1 and Variant 3 with forged steering knuckles on the front axle struts as a... admin | June 26, 2020 Machining of the series struts is no longer necessary: KW Classic suspensions for BMW M3 (E30)