where can i find one of these for a good price?

You can't. They are all individually programmed to the vehicle, and WILL NOT work in any other CRD because of the anti-theft system in the CRD.

So if you want one, www.greendieselengineering.com is the only place to get one.

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Proud supporting vendor of LOST Jeeps
TRAVELING CRD TECH. I come to you!
Need help? Just ask! I've taken it apart more than most.
Email jeep [at] maincomputer [dot] com - BOARD MESSAGING IS BROKEN
Over 225 CRDs currently driving with my valves, timing belt, rockers, or ARP Studs.
Bad noises = REALLY bad things.

would you reccomend to do this?

A lot of us on here have them myself included. I do recommend it. It gives you a bit more fuel economy, smoother throttle response and helps with EGR issues.

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2006 Liberty CRD Limited Deep Beryl Green Metallic Clear coat, Fumoto valve, MH ProVent (removed), GDE Eco tune,
OME 790/948 springs, OME struts, OME N132L shocks, Jeepin by Al A-arms, Hercules Terra Trac AT2 245/75R16
Weeks Stage 1 EGR delete, 5 volt steel glow plugs

GDE has several levels of ECU tunes. Take a look at what they are as what's best for you depends on your driving style and intentions. I've had the EcoTune since 8/2009 and liked it a lot but just replaced it as required due to the install of the GDE turbo. No reports on the GDE turbo just yet pending install of a SunCoast TC this week or next other than to note that post turbo install with a stock post F-37 TC I can produce instant shudder where none existed before by a simple hard acceleration, not full throttle, from a standing start.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs