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#211749 - 09/24/08 06:36 PM Re: G8 GXP - 415 hp
72chevman Offline
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Registered: 09/27/07
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The 2008 model was rated at 360 HP on regular gas. You could have the PCM tweaked and get 400 with premium fuel. Looks like Pontiac is just now delivering the 2009s that way as they now require 91 octane. They are rated at 15/24 MPG which is not bad for a 3900 pound V-8 car.
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