Jkhub18

We tried to tune the Jeep but could only do the trans without sending the computer out to hp for I believe $249 so that we could get into it. From what they said 15 and later have to be "unlocked". As for a cooler thermostat we just ordered one from Mishimoto for around $60 after shipping. It is a 180 degree vs the stock 203. Just have to pull spring out of housing and replace thermostat. Below is a picture of what we bought. Hope this was helpful


This is what we bought

Jkhub18

I'm putting pictures of how it all comes apart in case you need to know. Hope it helps

This is how it sits in house take note on how spring is before taking apart. To release just press down on spring and turn
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This is it released from housing

And this is it removed

To install just reverse the removal procedure

Sixty4x4

Yes thanks JKHub, we knew about the unlock procedure but you have probably noticed the Pentastar with a bit more giddyup due to not pulling so much timing advance at higher RPM. What we want to do with sons unit is get that torque/HP band down from that excessively idiotic rating. What idiot at FCA thought that rating HP at 6400RPM and redlining at 6000 was a good idea. You should play with Power Enrichment as well and that will prevent the timing retard because of knock.