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#211542 - 12/19/09 05:51 PM 2008 Grand Prix GXP
Keith Herrington Offline
Registered: 04/11/08
Posts: 75
Loc: Severna Park, MD
I'm in the process of buying a 2008 Grand Prix GXP. I've done a bit of research and find the front rotors are 12.7" and the rear 12", both cross drilled. What I can't find out is whether the front calipers are single or double piston. I'd also like to know whether fitting F Body aluminum double piston calipers is possible or makes sense and whether the only benefit is the reduced unsprung weight?

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