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by r0y
Wed May 26, 2010 9:20 am
Forum: Parts/Product Reviews
Topic: MPx Underdrive pulley
Replies: 78
Views: 26918

Jerome Adams wrote:got one, love it. car revs easier and noticeable hp gain

you don't gain HP, you free-up HP.

same thing here, got an UR UDP, revs a lil bit smoother, not a big deal, not a big noticeable difference.

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