Chevy and GMC Duramax Diesel Forum - View Single Post - Real World Options with dealing with DEF issues!
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post #5 of (permalink) Old 04-21-2019, 09:16 AM
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SilverGorillaLML's Avatar
Join Date: Feb 2015
Location: Where cows cluck and chickens moo, VA
Posts: 8,463
Get efi live from a reputable tuner the h&s is shit tuning and there isnt support for it any longer. Exhaust and unplug the 3 connections under the hood and you're good to go. I've done many a lml this way and never had an issue. I have yet to see or even hear of an lml blowing the egr open under high boost. They arent like the older years. I ran mine with no blocker plates on a hotter tune than most would dream of asking for, for years and thousands of miles and never had any issues.

2011 GMC Sierra 2500 cc/sb LML Quicksilver
Has some stuff to make it go fast and blow up sooner.
2 Banks performance dpf's, 2.5 egr coolers, 3 Def tanks filled with meth, custom hot air intake, snail mod,
garden hose ran from fass, 16 John deere injectors, 22x16-378 forces, and like sooo many stickers brah

Wiles Diesel Performance
Woodstock, Va

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