My brother has a 2010 and he got the DPF removed and a EFI live tune for light towing (+40hp) and that was $1500. He already has a AFE intake and that really woke his truck up as well as increased mileage.
Just was quoted 2100.00 for a 2012 Duramax with EFI live.
Complete exhaust and light tune.
They said the newer erea trucks are a bit more time consuming which makes sense .
H&S on 3 dodge 6.7 now, plug them in and never looked back. But IMO ya need a tranny tune to get rid of the sluggish!
$1000 for egr delete???? That's some good cash!!
Lots of good info on how to do it yourself.
Buy a good kit. And delete it all!