I know its preferrable of course but heres my trucks configuration. I have an 03 GMC ex cab 4x4 Dura/Ally. I installed standard juice from JK about a year ago. It has been set on level 2 for regular driving and on level 1 for towing since then and I have never ventured to try any other settings because I am very pleased. I plow snow all winter long and tow a 31 foot Jayco with a 14 foot slide out room (ball hitch trailer not a 5er) weighing in at about 9000 lbs max out of my driveway. Plus me the wife and 3 little ones and a bed full of camping gear and beer. I use tow/haul all the time with the trailer on and plow in regular mode. Last summer I took some steep uphill PA grades at 65 or better with the air on and lovin life with this truck. This summer I have been taking a little easier on the truck. Anyway do you think I really need to monitor the extra 30 Hp or so I am juicing or should i be okay? I've been repairing gas motors my whole life but the diesel thing is,well-different. I am not comfortable drilling the mainifold while the truck is running or off for that matter. To make things worse I took the truck in for inspection with the juice box on and the tech kid who did the inspection wrote all over the work order that I "spliced into factory harness and removed vahicle emission label". Of which neither are true I didn't splice anything I plugged it in and there never was a VCI label on the radiator shroud where I put an "Edge" sticker. I have no plans of going any further except maybe an intake. But that service experience scared me thinking about my possible future warranty needs. I mean if I were to drill the manifold for a probe this schmuck would probably take pictures of it.
