I have only had the tune for about 10 days or so but here goes.

Mileage: If you drive conservatively, you will get some great numbers...about 24-25 city/mixes and around 30-32 highway 1800-2000rpm

Mileage: If you take advantage of the "HOT", your mileage will return to about stock but with more power...so it is to be expected. In all fairness, it is still maybe better than stock by about 5%

Driveability: It is much more responsive...better feel from the "Go Pedal". It is not a quantum leap in acceleration but it definitely is faster and smoother. It pulls stong over a greater range of rpm and turbo lag is almost non-exisitent. When using "cruise control", not only is the highway mileage better but it shows less "want" to downshift.

Other Things:
1) The temp guage seems to be reading "slightly" cooler than previous and I already had the SEGR.
2) Tip Out of the "Go Pedal" at lower speeds while the tranny is still in the lower gear range takes a bit of getting used to...it seems to keep power on for a split second...especially noticeable in parking lot manuvers.
3) Probably related to #2...it seems that the CRD Coasts a bit easier...no clunking of the drivetrain when you lift like before.
4) Engine noise at idle is more pronounced than stock...but about the same as a SEGR.
5) The turbo whine seems to be more than stock but less than SEGR alone...not sure but seems that way.

Overall: Much better CRD than stock...Better MPGs than stock if you can resist the urge to "floor it"...Even better driveablity than just the SEGR or Unplugged MAF Sensor.

It seems like GDE has tried to duplicate the characteristics of the newer Piezo Injectors with the tuning of the Pilot Injectors with the Fuel Injectors. Better fuel management has definitely inproved the CRD.

If you can not keep your foot "out of it", go for the straight "ECO" and forget the "HOT"...

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Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

Congrats Welcome to the Hot club. You will get over the skinny pedal syndrome, at least I did? But that might depend on your age

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2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

...or your wallet at the diesel pump.

Nah, I had raced for Mazda for years...Auto-X...Karting...I can always develop a heavy foot...but with this vehicle I am all about utility and mpgs. Next on the adgenda is to build a flat floor for the cargo/backseat area with two below floor compartments.

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Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

First off, congrats on getting the tune! Second, I would really appreciate it if you could post a "how-to" or just some photos of your cargo area project... My biggest complaint with the Libby is that there is nowhere to put anything, so I've been pondering the idea of building something myself for quite a while now.

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2006 Jeep Liberty CRD, Limited
GDE Eco Tune, GDE TCM Tune, Bauer 203* Tstat, Amsoil EaA 201 Filter, Clean MAP, Samco CAC Hoses, Magnaflow Muffler #12226.
New Mopar Fuel Filter, K&N Filterminder, Fumoto Oil Drain Valve
225/75R16 Hankook Dynapros

Mine came with a optional "rear cargo organizer". It's a plastic shelf that lays flat when not in use then raising the handle latching the rear of it into the detents on the rear quarter panel inside covers. there are front, rear, sides and center dividers to hold stuff in it. That gives you a two level storage arrangment. When not needed loosening two screws removes it from the vehicle.

Joe

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)