Friend straight piped 2015 Dmax.. NO codes thrown?? No tuner...

Nsilvaz28

New member
Sep 28, 2014
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So you can delete the DEF/DPF but it has to be tuned as to not throw codes? This guy did it w.o a tuner? Or is he FOS? I'd be interested I just got my 15 Dmax and wanted a new exhaust but unsure of how to go about it w the def system....