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#13: 07-20-2005, 09:59 AM
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Title: Senior Contributor
Location: Southern Cal
Car: LGT 5MT AP Stg 2T
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Noob question: How does adding about 1/4" dia. onto a stock rotor that's about 12.5" dia. really do that much?! I realize they are "cross-drilled" and therefore should cool off better (if that's what it does besides lighten the rotating mass).

Are the pistons that much bigger? Aren't there 4-pistons already on the stock setup? Where does all the added performance come from? Nearly $2 grand (with installation) is a bunch of cash to drop. And I must say that the stockers with braided lines and bobcat pads slow the LGT down pretty darn well.