Bully dog...the GT Gas Gauge Tuner
drivinghard.com?
i was watching stacey davids Gears the other day on my dvr.. and he was liking it to curve fuel and throttle response ... anyone used one are they worth the 350 bucks or is there a better one on market or are these just toys and are worthless... like the TB paper weight for the 4.7 dak..


Thanks

 

they prolly dont make it for the dak, and it prolly wouldn't be worth it all it did was show u what way of accelerating is best, which can be figured out on ur own