2003 denali pcm

[gearheadnate]

I've decided to get a Nelson tune, but I want to keep my stock PCM for warrenty purposes. I found a pcm on ebay out of an 2003 denali. Will it work? What # do I need to look for. I have an 2004 GMC with a 5.3l.



Thanks

[chrisj6]

It should work, the 03-04 pcms should be the same part #. Allen will just have to flash the OS and vin # of your year model truck onto the pcm and you will be good to go.

Chris

[gearheadnate]

Thanks