C63s in the MD/VA/DC area w/ ECU upgrade or other mods
Just a little worried about warranty issues. Also, figuring out which company to go w/ for the ECU upgrade. Is Renntech & MHP really that much better than Evosport/Powerchip & Kleeman? Price difference of $2k.
Thanks.
IL
Just a little worried about warranty issues. Also, figuring out which company to go w/ for the ECU upgrade. Is Renntech & MHP really that much better than Evosport/Powerchip & Kleeman? Price difference of $2k.
Thanks.
IL
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Last edited by iLc63; Mar 9, 2009 at 09:34 PM.
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