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Old 12-30-2012, 03:36 AM   #5
Registered User
Join Date: Apr 2012
Location: bountiful
Posts: 25
My Ride: United States
3 pulleys. The one for low boost for the 420kit. The 2.7 inch for the upgraded 570 kit and 2.62inch which does 11-12psi at Utah elevation.
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