Performance chips are great however with a V6 you will not see nearly the increased HP that you would with the V8. Example, if a company says you will increase 50-60 HP expect with a V6 maybe 20-25. Also you can increase your HP tremendously if you get the main brain reprogrammed without the chip. However I would probably wait to your warranty is run its course if you have one since this will most likely void your warranty. If you add a cold air intake system add maybe another 8HP and if you add dual exhaust add 10-15HP. So with chip, CAI and dual exhaust you may get max around 45 additional HP. If you have the new Pentastar V6 with the 285HP it wouldn't be unreasonable to get your JK to around 330HP. Get system reprogrammed and possible you may hit 340-350HP. Thats pretty freakin' quick for a Jeep