I?ve been trying to tune the truck myself but I?m new to the whole thing and I?m kinda worried about messing up my truck, I?ve messed around with the turbo vanes and gave it a good rumble at idle but that?s about it, I don?t really have the knowledge to build a horsepower tune and I?m looking for a pretty good gain but nothing too out there. Truck is an 07 LBZ all stock except straight pipe