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Old 09-27-2011, 11:08 AM
Luce Luce is offline
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Join Date: Aug 2010
Cobra Make, Engine: Lone Star with IRS, 427W with megasquirt, T56 magnum
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My understanding is it can gain you a few horses within it's tuning band, but it's more a cool factor. There are a few threads about them here.
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