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Old 04-01-2013, 07:10 PM   #59
SC2150
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Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,063
Nope. The dual valve is great, not needed for average driver, but if you drive aggressively use the dual/ Just adds redundancy as far as evac source.

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