Questions Re: Smaller Underdrive Pulley
07-09-2005, 11:07 AM
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Location: St. Peters MO.
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I have the underdrive pulley on my 03 and no problems so far. The HP gain is not noticable by the SOTP but in my research the general thought is about a 3-5 Hp gain, these are dyno gains from several tuners. The change is not worth the money unless your doing a cam swap or some other engine work in this area.