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I'm jealous as I have the JB4 but not the exhaust. Mine's a lease so I can't modify the exhaust -- hopefully they'll put a better exhaust for my next lease.
I've had my Limited since September of '24 and haven't gotten any OTA updates that I know of either. I wish there was a way to initiate the update through the Uconnect system instead of going to the dealer to get the process completed.
I'm sure there are lots of higher mileage Grand Wagoneer's out there since they've been out since '22 and they have the same hurricane engine. I haven't heard of any real (widespread) issues.
It's a plug and play tuner that they make for many different manufacturers --- gas mileage unchanged -- since it's plug and play, you just remove it (unplug) it from your vehicle without a trace.
Love it on my Limited HO -- all power comes on almost instantly from the turbos. Just thought it put a smile on my face before. Now, it's even more of a beast -- I run mine on Map3 with 93 fuel. Definitely worth the $650
If you like the smile on your face from the hurricane, try the JB4 tuner from burger tuning on the HO. Adding an extra 100 hp makes my limited scream! All power comes on almost instantly from the turbos -- makes a big difference and well worth the $650!
I agree -- it does seem pointless. I guess the unicorn is glad I haven't gotten the vent "update" function as I would never use it since I always use my remote start to cool the truck. Why need a vent function? Just a dumb question.
Just got the jb4 put on my Limited -- wow what a difference in power and throttle response. There's almost zero turbo lag now -- just instant power. Where do you live? I'm in GA and have 93 octane so I'm running 93 octane and I'm shocked at the performance increase!
I just got my JB4 tuner from burger tuning installed on my '25 Limited HO, and WOW, you can surely feel the extra 100hp. I only drove it home in regular mode, but the throttle response and turbo response was incredible -- Can't wait to try in Sport Mode!
My question is, for those who have the...
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