What tune are you running with the mini maxx, you might be clogging up the dpf and because of it doing it so fast maybe that's causing problems?
Not sure just spitballing ideas
2008 Chevy 2500HD LTZ CC/SB LMM
NorCalTruck Stage 5 Cognito Leveling Kit - Cognito UCA, Fox Resi Shocks, Rare Parts HD Tie Rods, Cognito HD Swaybar Endlinks and HD pitman and idler arms.
BMF M80 death metal wheels 17x9 Nitto TeraGrappler 285/70-17
EFI LIVE with locking dsp5 switch tuned by Kory Willis
Edge CTS Insight with pyrometer, MBRP SS Turbo Back 4" exhaust no muffler w/ 5" tip, EGR Block Plate
Transgo Jr, PCV Reroute, Resonator Plugged