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

GL 63 tune

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Old Nov 27, 2013 | 08:01 PM
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2009 Dodge Viper 2019 GTR 2017 S63 coupe 2014 Rubicon X 2014 GL63
GL 63 tune
Looking for some guidance on getting a tune considering one of the following company's Weistec or Rennteck...
Seems like most of the GL63 have Rennteck....
Has anyone done Weistec tune on there GL63?
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Old Dec 1, 2013 | 10:42 PM
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GL63
I went with Reentech because my dealer did it so no warranty issues.
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Old Dec 4, 2013 | 10:16 PM
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2014 S550 - SOLD, 2014 GL550 - SOLD, 2014 GL63 AMG, 2015 S63 AMG Sedan, 2015 S63 AMG Coupe
I went with Renntech also.
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Old Dec 5, 2013 | 02:28 AM
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s550, ml550
Rentech here too.
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Old Dec 5, 2013 | 06:10 AM
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How big a difference do you see with Renn tune? What did they charge you?
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Old Dec 5, 2013 | 07:50 PM
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2009 Dodge Viper 2019 GTR 2017 S63 coupe 2014 Rubicon X 2014 GL63
I went with weistec. Should have it done by next week,,Going to vbox before and after the tune .
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Old Jan 31, 2014 | 09:42 PM
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2009 Dodge Viper 2019 GTR 2017 S63 coupe 2014 Rubicon X 2014 GL63
Finally got the Weistec tune on GL63 ..Wow the car really woke up. Big difference in acceleration and now the tires break loose..
This Sunday if the weather is good should be able to do some 0 to 60 pulls and report back
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Old Feb 1, 2014 | 04:18 PM
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18 E63s Wagon 15 GL63 (sold), 10 Turbo TT MT, A36 Bonanza, 20 JLU Rubicon
Keep us posted.
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