Contact Nick from my sig for Performance parts. And, take a look at the Speed Freaks forum at www.jeepsunlimited.com/forums. Be prepared, there are a lot of very immature Grand drivers there.
I don't think anybody makes a specific, bolt on turbo for the 4.7L or any other WK, but you could check out STS Turbo. I think one of their universals would work--I think there have been some guys putting them in WKs...
You may consider a good intake and exhaust system. AirRaid makes nice setups with TB spacers. I used to have a similar setup on my 4.7 WJ. -Definitely noticed a difference in performance. Good NA upgrades will make a big difference in performance. If you turbo/SC it, make sure to post some videos!
P.S. Don't forget about that extra 50lbs under the boot.
For an extra 6 grand for a supercharger and voiding your warranty. Trade in your 4.7 and get the SRT 8:2thumbsup:
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