Underdrive Pulleys?

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06-24-2007, 05:44 PM

#21

hepcatws6

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Quote:

Originally Posted by davered00ss

I gained 14rwhp & 12rwtq with the SLP (march, Powerbond) 25% underdrive pully.

I am glad to see those power gains. I have not seen another post by anyone stating how much of a power gain they made with a pulley. I know the box said something like 10-15, but I just figured as with most things of that nature, they were being liberal with the performance rating!