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SLK350
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108 Posts
Discussion Starter #1
I am looking for an ECU upgrade program available in the US. I don't want to ship my ECU to the UK or Germany for $600 (r171 uk company); or worse $1400 (Vath in Germany) - too many variables/risks.

I want a tuner here in the US that can do the upload/mod for less than $1K, or someone who has developed a Kit, whatever.

I can tell that the fuel map can be improved, the current programming isn't optimized for performance and is often unpredictable, especially between 2.5K rpms and 3.5K rpms, too erratic. Also the power band feels like it cuts off too soon due to the rpm limiter, another 500 - 1K rpms will probably get this car to scream, along with overall improved fuel mapping.

PS. I am NOT looking for someone to ship it to Germany or the UK for me (MBWerks) I want someone who can turn it around same day they get it, so I am only down 2 days.
 

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2005 SLK55
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664 Posts
try here...

http://www.renntechmercedes.com/

http://www.renntechmercedes.com/pdf/R171.PDF
 
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