Underdrive pulleys?? si or no?

[JB Dinan3]

I am thinking about buying some uuc or turner motorsports pulleys next week... has anyone tried/used these and does it really make any noticeable difference besides the fact they look good???

[RJ's325ITS]

Go with UUC after all they are local, they help but not enough to feel it. just as a side note do not mess with the crack pulley if you do make sure you use the OEM harmonic balancer (the big thing behind the crank pulley).