Well i talked to the dealer on who use to own this truck i got now. They said a women use to own!!!! They talked to her and she said there use to be a chip she had it set on performance but never changed it back to stock settings.
2003 gmc duramax LB7 allison transmission.
MBRP turbo back exhaust
American outlaw wheels
MasterCraft courser A/T TSK
02 CC LB LB7, PPE Hot, PPE Boost Valve, PPE Pitman/Idler Arm Support Kit, Fabtech HD Tie Rods, BD Exhaust Manifold, Ready Lift Leveling Kit, 285-70-17 Toyo's AT II LR E on H2 Rims, Airaid Air Intake, Magnaflow 4" Exhaust, PIAA 580 Fog and Driving Lights, Modded Intake Horn, Kool Vue Mirrors, DDM HIDS 6K Low and 8K Highs, Firestone Airbags, Tekonsha P3, Nicktane with Cat