ML55 AMG, ML63 AMG (W163, W164) 1999 - 2011 Two Generations

Best upgrade for ML63

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Old 05-15-2014, 08:01 PM
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2008 Land Cruiser, 2013 ML63 PP
Best upgrade for ML63

I have 4,000 miles on my 2013 ML63 with Performance pkg. was thinking of upgrading my ECU with Renntech to boost it from 550 to 638hp. Has anyone done this and was it worth a $3600 upgrade?
Old 05-16-2014, 02:17 PM
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2014 MB ML63 AMG
Nanook has and swears by the Renntech.
Old 05-16-2014, 03:02 PM
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2012 Mercedes SLS, 2014 Mercedes SLS Black Series, 2014 E63S, 2013 S550, 2012 ML63, 2013 C250
Originally Posted by Rockymtnjoy
I have 4,000 miles on my 2013 ML63 with Performance pkg. was thinking of upgrading my ECU with Renntech to boost it from 550 to 638hp. Has anyone done this and was it worth a $3600 upgrade?
We have a tune, street-legal downpipes and an upgraded heat exchanger on our ML63 and it is really fun to drive and our truck sounds amazing. You won't regret modifying your ML63.

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