Going back stock from DEF delete

rrh13441

New member
Mar 24, 2022
25
0
1
I have a 2012 GMC def and EGR deleted LML has anyone put there deleted LML back to stock and what are the issues and cost?


Sent from my iPhone using Tapatalk
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
14,320
530
113
Mid Michigan
Well, you'll have to start looking on Craiglist or Marketplace for the DEF tank, EGR, exhaust and whatever other parts were originally removed, then have them installed and find a stock tune for it. Cost will depend wholly on how much of the work you can do yourself or what your local shop will charge you.

Moved to LML.
 
  • Like
Reactions: 2004LB7

rrh13441

New member
Mar 24, 2022
25
0
1
I only need the complete exhaust and complete stock EGR sill has everything else.


Sent from my iPhone using Tapatalk
 

slowlml

Undercover Epa agent
Feb 6, 2015
577
52
28
Strasburg Va/Wardensville Wv
I've only put a handful of trucks back to stock. For easy numbers let's say 3 out of 5 had emission codes afterwards and had issues. Imo the biggest factor depends on how they were stored when removed. Which is a crap shoot when buying used stuff and brand new is just stupid expensive. What's the reasoning for putting it back to stock? Emissions testing?