Thread: Under Pulley
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Old 08-10-2009, 05:47 PM   #2
Jake Raby
Engine Surgeon
 
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
Yes I have data from 3 different units compared to stock on 4 different engines.

The one I tested on ly 911 saturday was good for a 10HP gain at the rear wheels, on my dyno.
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