Hey rumblefish, does not have to pass emmisions test here, have done the cold air intake, running flowmaster exhaust, no headers, no cat. just mufflers.
Bogs on take off when u punch it, needs 1/2 mile to really get up to speed...lol. I don,t think it would spin the tires if its life depended on it....unless we put some gravel on the road to help it out. I can see the gear change to 4.56 helping on the highway for higher speeds so its not revving as high, but can it get the bottom end to pick up power. If he is mudding, would love to see that bottom end have more kick. Any thoughts