2019 GMC L5P Tuners

[rvkeller]

Looking for a good tuner for 2019 3500.  Any luck like a HP Tuner or EFILive?

[Diver6]

Also wonder about this for the same truck, from what I've watched on YouTube the Bank's looks the best. Not sure how they affect warranty. 

[rvkeller]

Also seen this as well as the HP Tuners which is a pretty penny but you get a spare ECM.  I don't want to throw my warranty away but would like to wake the truck up a little.

 

https://www.hptuners.com/product/l5p-ecm-exchange-service/

 

Edited December 29, 2019 by rvkeller
added address

[Diver6]

Don't get me wrong I'm not a Banks Derringer fan boy but they are on sale for 860 now and you don't have to touch your ECM at all. I'm assuming its easy to remove for warranty work. Like to hear from guys who have used these different programmer's.