Posted 07 June 2012 - 10:29 AM
W/T_Deluxe, I have same size of tires as you, all terrains though so less aggressive and cant get them to break loose even with the black bear tune. Similar mods too. I wonder if your eaton posi would make the differece? Had the Tune for over a year, went from 16.0l/100km to 16.3l/100km and the only thing I noticed different was that the sport track mode holds the RPM's longer, feels good but who knows if any power difference.
Jenna: I was never made aware that you had to clean the TB and the MAF before doing the data logging and sending the info in for the tune. Would that make any difference??
2007 GMT-900 Sierra SLE Z71 crew cab 5.3, BlackBearTune, Cherry Bomb Extreme Dual Exhaust w/t Stainless quad tips, BFG all Terrains,17X9 MotoMetal 955's, 2" Suspension Lift, Chrome bull bar w/t KC Daylighters, GM Chrome Grill, All GM handles Chrome, Xtang trifold, bedrail covers, headlights smoked out, tail lights smoked out, bug deflector, vent shades, GM bed mat w/t roll on gator guard, Windows tinted, K&N drop in filter, Airaid Intake Tube, Pioneer in dash touch screen dvd system, Pioneer speakers, Bazooka 8" Amplified Sub, L.e.d dome,backup and license plate lights, L.E.D smoked third brake light, Billstein 5100 fronts, Nitro Rears, Bushwacker Boss Pocket style flares, GM Fender liners, HID lows and fogs, White knight backup lights, Painted mirror caps.