Kleeman or Renntech ECU for Cl600 twin-turbo

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Jul 4, 2006 | 06:09 PM
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Who makes the best ECU upgrade for our twin-turbo 600's?
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Jul 5, 2006 | 09:49 PM
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I would probably do a search on the CL/S/SL 600 forums for Kleeman and Renntech...there is a ton of info available. They both seem reputable. I'm going with Renntech just cause they have a great reputation and they are only an hour from my house!
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Jul 5, 2006 | 11:06 PM
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Where are you located?
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Jul 7, 2006 | 07:57 PM
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Florida.
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Jul 7, 2006 | 08:53 PM
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Renntech
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Tags 500, 600, cl, cl600, cls, ecu, kleeman, mercedes, ml500, renntech, supercharged, turbo, turboed, turbos, twin, upgrade, upgraded
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