i have an 08 4.7 quad cab as well with flowmaster 40s true duals and a superchips tuner, that tuner will be the best 300 bucks you spend, even on the 87 octane setting the throttle response and shifting is so much better highly recommend you get one you'll love it
i have an 08 4.7 quad cab as well with flowmaster 40s true duals and a superchips tuner, that tuner will be the best 300 bucks you spend, even on the 87 octane setting the throttle response and shifting is so much better highly recommend you get one you'll love it
libertyhillbilly 1 year ago
What gear ratio do you have in it?
Jeramie868I 1 year ago