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Discussion Starter #1
Im really sorry for asking something that has been covered but my phone is being a piece and not letting me use search. Can i run a dpf delete exhaust on my lmm with out a tuner? I know it will cause check engine light to come on but i can deal with that until i have extra cast for efi live. Will it do anything other than cause the light to come on?
 

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It will make the truck go into limp mode. Mine came on as soon as I fired it up to test for leaks before programming the DPF delete tune on the truck.
 

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Discussion Starter #3
Ok, thanks. Also i have a 5" downpipe back exhaust i bought for my lly, can i use it on my lmm
 

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Yep, they're all the same, just slightly different hanger setup.
 
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