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underdrive pulley drawbacks?

1938 Views 2 Replies 3 Participants Last post by  kj_cinci
What are the drawbacks of installing underdrive pulleys? What is sacrificed in return for more rwhp?
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No idea, I can't tell any diff. w/ the Steeda ones on, but 4 rwhp… I don't think you'll feel it anyhow.
Power gain is minimal, 8 RWHPs for me... It revs better...

A/C is even lazier... but only while not driving, like in a traffic jam...
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