I just wanted to share this, i needed A new DET sensor for my 09 M8, and didn't want to spend $110 from A/C so after doing 1 hour of research, I found an exact AC/Delco replacement part number that is used in a number of Sport cars. I purchased it for $11 Shipped on Ebay. here is the info:
Ignition Knock (Detonation) Sensor 18640-78G00 89054009
Ignition Knock (Detonation) Sensor 18640-78G00 89054009
Last edited:
