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SL 500 AMG
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3 Posts
Chip

I know of Powerchip which is supposed to be the best and pricy, I belive it's www.powerchipgroup.com or try www.speedtuning.com I believe there are couple more...
 

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Audi S6
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56 Posts
[url]http://boykinracing.us[/url] carries chip tuning and affordable intake upgrade pack...

http://boykinracing.us carries chip tuning and affordable intake upgrade packages for all benz models. Gains are usually around 50hp, and everything they do is covered by warranty.
 
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