If i did this - the only thing i would consider is a 180 degree stat (is the 4.0 stat the same as the 3.7?) and then the stage 2 jet chip. Stage 1 will be so subtle you wont tell any difference.
If the 3.7 and 4.0 stats are the same - it will be easy to change and to get the stat you need. 3.7 stats also fit 3.9, 4.7, 5.9 engines. I have a 4.7 dakota with 180 stat, superchips tuner, works great.
If the 3.7 and 4.0 stats are the same - it will be easy to change and to get the stat you need. 3.7 stats also fit 3.9, 4.7, 5.9 engines. I have a 4.7 dakota with 180 stat, superchips tuner, works great.
