GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

GL320 at Altitude

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Old 08-25-2007, 02:00 PM
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GL320 at Altitude

I purchased a white on black GL320 yesterday after driving a GL450 and a GL550. I had every intention of buying the 550 but I was sold on the 320 after comparing them while driving in the foothills at about 6500' absl.

The 320 felt every bit as powerful as the 450. Turbo diesels (any turbo charged car) really excel at altitude due to forced induction. They don't lose nearly as much power as a N/A engine.

The 550 was very smooth and the exterior looks awesome. However, the 320 was close enough, performance wise, in the mountains and the fuel mileage is incredible. The 320 also had every option available unlike the 550 and the dealer gave me an excellent deal.

If you live at sea level, aren't too concerned about fuel mileage, and want a real performer the 550 is incredible. If you live at altitude or you want decent gas mileage you'll be extremely impressed with the 320.

I spoke with Kleemann and the K-Box will be installed next week.
Old 08-25-2007, 04:15 PM
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Originally Posted by G55K
I purchased a white on black GL320 yesterday after driving a GL450 and a GL550. I had every intention of buying the 550 but I was sold on the 320 after comparing them while driving in the foothills at about 6500' absl.

The 320 felt every bit as powerful as the 450. Turbo diesels (any turbo charged car) really excel at altitude due to forced induction. They don't lose nearly as much power as a N/A engine.

The 550 was very smooth and the exterior looks awesome. However, the 320 was close enough, performance wise, in the mountains and the fuel mileage is incredible. The 320 also had every option available unlike the 550 and the dealer gave me an excellent deal.

If you live at sea level, aren't too concerned about fuel mileage, and want a real performer the 550 is incredible. If you live at altitude or you want decent gas mileage you'll be extremely impressed with the 320.

I spoke with Kleemann and the K-Box will be installed next week.
Congratulations on the new ride! Sounds like you got a fully loaded one, is it an '07 or '08?
Old 08-25-2007, 04:41 PM
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Congrats! You'll love it, no matter what kind of GL it is.
Old 08-25-2007, 05:43 PM
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Originally Posted by G55K
I spoke with Kleemann and the K-Box will be installed next week.
What is the K-Box?
Old 08-25-2007, 07:14 PM
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Originally Posted by BlownV8
What is the K-Box?
A parallel ECU that alters the factory engine parameters to increase performance. Pretty effective from what I hear.

Old 08-25-2007, 08:31 PM
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Originally Posted by Nevada Jack
Congratulations on the new ride! Sounds like you got a fully loaded one, is it an '07 or '08?
Got a great deal on a '08.
Old 08-25-2007, 10:27 PM
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What kind of increase is expected from the K Box?
Old 08-26-2007, 12:11 AM
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Hey, guys, whoever installs it first, let me know how much difference it makes? Do they have a website? Am I too lazy to look it up myself? And what about Naiomi?

Sorry, I was channeling a non sequitor for a moment.
Old 08-26-2007, 02:13 AM
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Originally Posted by StevethePilot
Hey, guys, whoever installs it first, let me know how much difference it makes? Do they have a website? Am I too lazy to look it up myself? And what about Naiomi?

Sorry, I was channeling a non sequitor for a moment.
www.kleemannusa.com
Old 08-26-2007, 12:05 PM
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This one on Ebay looks interesting. http://cgi.ebay.com/ebaymotors/Merce...spagenameZWDVW
Old 08-26-2007, 08:11 PM
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Originally Posted by BlownV8
This one on Ebay looks interesting. http://cgi.ebay.com/ebaymotors/Merce...spagenameZWDVW

I've never heard of them which would concern me.
Old 08-26-2007, 10:51 PM
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I tried to view the K-Box on their webstore for the US. It says "no items found". I emailed them to let them know of this. I am interested in the price and specifications.

Is this something that you would use? If so, how would it affect the warranty?
Old 08-26-2007, 11:08 PM
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Here is your KD-Box http://kleemann.dk/site/Main/performanceproducts/item6


If you are modifying diesels you should have a pyrometer guage installed.
Old 08-27-2007, 07:11 AM
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I was able to get to that page. On the sidebar it says that it is available at their webstore but when you navigate to their webstore, following the link "outside of Europe", there's nothing. http://476153.shop07.dandomain.dk/sh...de%26login%3D1
Old 08-27-2007, 06:32 PM
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G55K, I installed the Brabus PowerXtra on our GL320 a couple of weeks ago. It made quite a difference, enough that you can feel a pretty decent push back in the seat when accelerating from a stop.

If you are looking for the K-Box or the Brabus PowerXtra contal Sunil at Motorwerks he is a dealer for both and he is a great guy to work with.
http://www.motorwerksgroup.com/contact.htm
248-668-6793

Last edited by eesnard; 08-27-2007 at 06:36 PM.
Old 08-29-2007, 11:16 AM
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Originally Posted by scottybdiving
Is this something that you would use? If so, how would it affect the warranty?
One of the dealers listed on the Kleeman site is my local MB dealership, so one has to wonder what it would do to the warranty if the shop is willing to install them?

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