Hi GuysI have Twincam 16v and 20v oem Knock sensors available, these have already been examined and are correctly Doing the job, will fit the following motors, 4afe, 7afe, 4age 16v, 4age 20v silvertop and blacktop,R550 Every single For more information Call Kreesen Offered on whatsapp 0733454554The Blacktop Conversely features all nevertheless the