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^ There's quite a few well documented 500whp 2010-2011's out there. I think enough to warrant the 500whp badge. 2011's are posting the highest so far due to the 10 additional HP, no power steering pump, reduced engine friction from PTWA process, new exhaust manifolds, increased exhaust diameter to 2.75", and a 40% larger more efficient heat exchanger all help the 2011 put down more whp over older models.
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