I was told by my buddy at Napa that many offshore models can't be programmed using onboard computer. OEM can be though. And thank you for all your info. It's a great learning process. I looked at the label in glove box and neither of those RPO codes are there that I can see. So im not sure of frequency.....yet. As you can see in this Pic. I'll figure it out soon er or later. Lol. Thank you again.I don't profess to know everything but I've never, ever, heard of this. When you look up your car on the various GM and ACDelco websites, they ALL specify the same part number I provided you.
I even told you that I installed them on my car and you still don't believe me. Where did you learn this?
@Doubeleive @gooffeyguy @PG01 @wjburken