Larry, These are the Bilstein Part Numbers for the Sport shocks for the 5ktq/200q (non-20v): P36-0370 front BE5-2593 rear The drop shipment invoice I have from Bilstein lists these shocks as being for an Audi 100/C4 application, with the rears noted as M10 thread. Taka '86 5ktq (for sale w/ Bilstein sports) '91 200q (stock shocks, needs Bilsteins)