2012 LML delete?

07srt6

New member
Hey guys, my brother has a 12 lml he wants to delete the exhaust only, I'm not a duramax guy but he said he can't find anybody that sells a tuner to retune it after the delete. What are his options?
 
I ran a H&S Mini Maxx with afe 4" down pipe back ran very well there are tuners floating around on eBay but not cheap. I would also look into EFI Live hard to go wrong there.
 
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