525RWHP huh...? LOL
So I'm not surprised about this power description for the C63
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Also, if you didn't want to be bothered with it, no one will know it is even tuned if you were to leave it on.
Headers, Exhaust, other bolt on items may be easier to detect...
The Best of Mercedes & AMG
http://www.ebay.com/itm/Mercedes-Benz-C-Class-Sedan-W-P2-Premium-2-Package-Renntech-Upgrade-562-HP-Headers-Multimedia-/371060827645?forcerrptr=true&hash=item5664f2e5fd&item=371060827645&pt=US_Cars_Trucks
and I bought it...






