You probably won't like the answer: nothing. I'd go with new gears, a superchips programmer, and a new exhaust because it will at least sound more powerful (None of these really give you more horsepower, they help to turn the bigger tires and fix your shift points) If you have the money, I'd go with a Hemi and call it a day.
Personally, I'd stay away from superchargers but that's just me.
I agree, I had a Ripp supercharger on my 08 JKUR. The supercharger was the biggest waste on money I did to the jeep.
Really, what was the issue? I do not have one but wondering about the rip supercharger. Do it work like it suppose too?
found it thanks.I think it was JP Magazine that tested one of the throttle body spacers for the 3.8. Overall it had a detrimental impact but it sure did whistle.
Search for the "7 Steps to power and mileage" article, my web access is hokey right now so can't get a link.
I have 1 2010 Rubi Unl, just turned 76000, 3.5" Clayton lift, 35's , It's seen a lot of trail miles but as with anything else, depends on how hard you wheel and how well you maintain.
before gears, Superchips performance tune helped, added Screamin Demon coil and wires and felt a SOP difference, gears were the biggest improvement - as a test I took off performance coil and replaced with stock, I could feel the difference. Added Dynomax VT and it felt more responsive and also noticed a difference on a mountain pass I travel often, took a little less effort and rpm's at 60 on the climb were a little lower.
planning for 37's so getting C's gusseted and will run the stock axles until they quit or I save enough for PR44. I don't plan to run 37's full time, they will be for trail running.