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Old 09-20-2009, 10:06 PM   #5
violametallic-S-
2001 RUF 3800S
 
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Join Date: Mar 2009
Location: Ontario, Canada
Posts: 326
Quote:
Originally Posted by jaykay
I am running an underdrive pulley now......the one I have is from Mantis racing in Canada. I am sure there are others. I am told it gives +7hp.


Did you notice a difference?
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