I know for a fact that Andrew Rodriguez who manufactures the BuzzKen DPF/EGR delete exhaust for our cars recommends JR Tuning for the 35D....

You did not list them but they are listed on his website for 35D tunes www.fixmyvw.com - guy is super helpful and big on VW TDI (which he recommends Malone tunes)

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards