Delete and tune labor cost for LML Duramax

Hey everyone,

My truck has once again been throwing codes on and off for a nitrous oxide sensors (been addressed before) and i want to just be done with the system. I’ve been looking at kits online but was wondering what the labor would look like. This would be for a 4 inch straight pipe, EFI live and EGR delete kit. I’m new to my current area so i still need to do my due dilligence a shop that will actually do it. In the dallas texas area for reference.

I kind of just want to buy the kit myself and have a shop install. Not sure what that would look like but i assume it would be around 1000 for tuning and labor. Also is the egr kit even worth it or can i just unplug/tune it out and straight pipe the def system?