You should be able to get this at any NAPA store. You can also go to your local GM dealer although expensive will be genuine GM parts. I would also recommend Red Regal t on the board in the for sale section. He usually has good ones to sell reasonably priced too. I actually need to buy one myself as an extra. I do recommend replacing the coil pack and Module at the same time. Some people hav experienced issues with replacing only one of these items. Although expensive, well worth the headache factor. Contact Red Regal, from all I have heard great service and parts. Hope this helps