dont get them, youll just have problems down the road
ditto. i've never met anyone with ur pulleys that actually liked them. all i hear are complaints.
but they DO provide the best gains (for pulleys)...so you yourself have to balance out what your priorities are.
personally, my #1 priority is keeping my engine alive & keeping resale on my celica. so that means i'm into less wear on my celica and therefore not into ur pulleys.
extra horses are great--but not at the risk of damaging your car.