GL Class (X166) 2013-2015 after facelift became GLS (X166)

RaceChip for GL350. Please share your experience.

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Old 05-21-2015, 08:59 PM
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RaceChip for GL350. Please share your experience.

Hello GL350 owners.

Does anybody have experience of using RaceChip on GL350. Can you share it ?
Does it really worth it ? Is there any noticeable power and MPG improvement ? I'm thinking of buying the one that cost $219.
Here is the link : http://www.racechip-usa.com/chiptuni...S-Spec)-179kw/

Thank you.
Old 05-23-2015, 08:58 AM
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Originally Posted by aeggroup
Hello GL350 owners.

Does anybody have experience of using RaceChip on GL350. Can you share it ?
Does it really worth it ? Is there any noticeable power and MPG improvement ? I'm thinking of buying the one that cost $219.
Here is the link : http://www.racechip-usa.com/chiptuni...S-Spec)-179kw/

Thank you.
I'd love to get some feedback on this product as well.
Old 05-23-2015, 10:28 AM
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2013 GL450
Ditto
Old 05-25-2015, 09:57 PM
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I had it on my 2014 GL350. I went with the one for $375 (if memory serves me right). I can honestly say it added a ton of useable power! We have a house upstate NY and make the trip up and back at least 25 times a year. With so much seat time I can't believe the difference for the price. Mpg improved quite a bit too. Around town we increased an average of 3-4mpg (one 20 mile trip we got around 34mpg!!). On the highway it increased 3mpg on our average runs. I took it off because we were having some warranty work done and felt a huge letdown. Power seems inadequate and my mileage has dropped. I used to average 28-28.3 on the highway going upstate, now 25.5 is a great day and average is 24.

We were in the process of trading the car in so I pulled it off again and wound up selling it. In the end we decided to keep thetruck so now I'm facing buying a second one lol.
Old 05-25-2015, 10:50 PM
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Do they make it for the GL450? They only have 400 and 63 for the gasoline vehicles.
Old 05-26-2015, 04:48 PM
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Originally Posted by emilner
I had it on my 2014 GL350. I went with the one for $375 (if memory serves me right). I can honestly say it added a ton of useable power! We have a house upstate NY and make the trip up and back at least 25 times a year. With so much seat time I can't believe the difference for the price. Mpg improved quite a bit too. Around town we increased an average of 3-4mpg (one 20 mile trip we got around 34mpg!!). On the highway it increased 3mpg on our average runs. I took it off because we were having some warranty work done and felt a huge letdown. Power seems inadequate and my mileage has dropped. I used to average 28-28.3 on the highway going upstate, now 25.5 is a great day and average is 24.

We were in the process of trading the car in so I pulled it off again and wound up selling it. In the end we decided to keep thetruck so now I'm facing buying a second one lol.
Thank you so much. This is the response I was waiting for.
Old 05-27-2015, 01:44 PM
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will there be issues with my warranty? If I install it, can I pull it before service and leave no trace for MB to find?
Old 05-28-2015, 12:44 AM
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Worked in my 2011 GL350 bluetec as the company advertised. Loved it. Really made a difference when towing my two outlanders on a trailer specially when going up hill.
Old 05-29-2015, 08:49 AM
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I've been e-mailing RaceChip about their product availability.
According to them :
"The 2015 350 Diesel uses a new engine (actually starting in 2014) and currently only the Ultimate module is supported due to the need for additional processing power. "

So our option is the only one that cost $599.
Old 05-31-2015, 10:35 PM
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Originally Posted by aeggroup
I've been e-mailing RaceChip about their product availability.
According to them :
"The 2015 350 Diesel uses a new engine (actually starting in 2014) and currently only the Ultimate module is supported due to the need for additional processing power. "

So our option is the only one that cost $599.
Are you sure you were actually talking to racechip? The engine did not change last year. Here is what they have listed on their site.

http://www.racechip.com/chiptuning/m...79kw/index.php
Old 06-01-2015, 06:42 AM
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Originally Posted by emilner
Are you sure you were actually talking to racechip? The engine did not change last year. Here is what they have listed on their site.

http://www.racechip.com/chiptuning/m...79kw/index.php
I'm not sure, but I'm using this page : http://www.racechip-usa.com/chiptuni...S-Spec)-179kw/

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