It can definitely be done. The dealership did it with my 02' DII Kalahari edition. I overheated my Bosch 4.0, and burned a hole through a piston. I purchased a low mileage P38 Gems 4.6, and had my local dealer do the install. They also reprogrammed my ecu to understand it was a 4.6. Expensive to be done by them. If I had purchased a 4.6 Bosch ecu; I could have had an independent do the work, and saved a couple of grand in labor. But the difference was not only noticeable; it was amazing. Very happy I did it. More for the torque while off-roading in mud and sugar sand, than for any other reason. Note: they also had to reprogram the trans ecu to understand the 4.6 as well. Something about a different torque curve.
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"In certain places, at certain hours, gazing at the sea is dangerous. It is what looking at a woman sometimes is." - Victor Hugo
Originally Posted by Elemental
Some guys play hard to get, I play hard to want.
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