I run MS v2.2 controlling fuel only w/LC-1 wideband. Highway driving can eek out 36+ MPG if I baby it. Have had it installed for almost 2.5 years now.AFX UDP, test pipe, Tanabe Concept G catback, AEM V2, NX 75 shot, to name a few.I agree it is better than stock ECU.
---2012 2500HD LML