This is my 4th JK 3.8L. After installing the Superchips 3872 today, I have to say I fully regret never having this before. Can't stress enough just how much better this Jeep drives and responds now. Seriously... If you're on the fence about spending 300 bucks for one, just do it. Absolutely worth it.

 

I agree 100% although i have the 3.6l and I got a screaming deal on the trail dash. definitely wakes up the motor. runs WAY more efficiently and pedal response is on point now. well worth the purchase price

 

I originally got the 3570 but upgraded it to add the engine tuning. I've only tried the 87 and eco tune but I love the throttle response. Plus the benefit of turning of tpms (running 315's).

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I can't agree more, it really woke up my 3.8L. I'm running the 93 Octane tune but have been using 91 gas and it's been great. More throttle and better shifting.

 

Are you running an automatic or manual?

 

I agree! Did the same for my 3.6 (auto)

 

Automatic

 

Do you notice any engine ping or knock on acceleration? I thought id read that if you run lower octane fuel but high tune it could cause issues?

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I used to do the same thing. Run the 93 tune on 91. I started hearing some pinging so I switched to the 91 tune. Milage is significantly better and no noticeable difference in power. And the big win...no pinging

 

How much difference did correcting the speedometer/odometer make with the 3570? And what gears/transmission were you running? I'm considering the 3570 as I'm about to buy new tires and I'm gonnna go up to a 34 or 35 inch tire (from 33's). I have the automatic trans with 3.73 gears and a stock 3.8 engine currently.