Any updates on whether anyone has put out a performance upgrade chip or ECU upgrade lately?

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'03 KJ "Rocky Mountain Edition" 3.7L
K&N Intake
Magnaflow Cat-Back
Yokohama Geolander AT/S (Liked the Toyo Open Country AT's better though.)

Jet has had a chip out for a while.

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I'm baaaaccckkk...
LOST Member 10
If you can read this you don't need glasses, go Wheel your Jeep!

here is an oz company that does them...

http://www.fueltronics.com.au/

they have a listing for the KJ 3.7 on the autralian site, but when i checked north america no jeeps listed at all... weird...

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04 KJ Limited 3.7L

The only reprogramming available that really works for the 3.7 is a flash from B&G Chrylser. When we dyno'd the Jet chip it actually lost 5 peak hp. Jet was kind enough to offer to make a custom chip for another $400, since the $250 chip I already purchased didn't work.
The Jet chip is either laying around in a drawer some place, or I threw it away out of disgust with the the product and poor treatment I received from Jet. Haven't thought about that POS in a long time and can't remember what I did with it.

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June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...

B&G Chrysler? A dealer? Any details on performance #'s.

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'03 KJ "Rocky Mountain Edition" 3.7L
K&N Intake
Magnaflow Cat-Back
Yokohama Geolander AT/S (Liked the Toyo Open Country AT's better though.)

They're a performance shop that's known for their ability to program DC motors any way you need them.

http://www.bgperformancepcm.com/

The performance increase will depend on your other modifications. I already had made many changes before getting the flash. It allowed me to put an extra 15% more power to the ground with the same nitrous and fuel settings. It will make everything work well together, and it will get rid of the torque management. The performance increase is usually pretty nice after a week or two of it learning.

Here's a good thread about the B&G flash.

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=20367&postdays=0&postorder=asc&start=0

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June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...