Originally Posted by Cherokee4X4
Ok...I just got a brand new jeep grand cherokee with the 5.7ltr V8 360hp...what can I do to this thing to crank out 400 that will not break the bank. Has anyone tried to get a little more out of their jeep yet?
A bigger hood and a supercharger
Anything like a cam or forced induction, you're going to have to wait for the aftermarket to create a program via a handheld tuner. You need a tool to tune the engine or else it'll never run right.
Diablo or Superchips will probably have one soon (one could hope). They're both notoriously slow to release their products when it comes to Chrysler products. ChryCo likes to make their codes complicated, so a tuner company would tons of lines of codes to decipher, so I'd be patient. But when the tunes start to come out (probably on the heels of the WK2 SRT8)....
it's party time!
For now, get a 3" exhaust setup and have your throttle body ported. I personally think that the woody intake (the only one on the market so far) is too short and just a noise maker. Start with the exhaust and the TB and see where that takes you.