bri487 5,000+ posts
Banned
i am putting either 4.10s or 4.56s in my truck. still deciding. the programmer can calibrate my speedo with aftermarket gears and tires up to 38"s. some of the programmers for diesels have made over 100hp increase on the dyno. a simple exhaust system and programmer on a diesel goes a long ways. then when you put on a banks turbo in addition to the other things like a buddy of mine did on his 06 duramax crew cab, then you get crazy. on level 5 you can smoke the tires until you back off of it. probably half way through 4th gear.yeah i know that's actaully better than typical on a gas motor, or so i hear. stock gears are no more for my dakota though, at least they won't be come this next weekend.