Yes I did put all 4 on and I agree it was a PAIN IN THE ASS!!. Your right, not sure if it was worth putting those 2 on, well at least the power steering, I tried not doing that one but I couldnt' do it. the only thing that made the alternator hard was trying to get that long mounting bolt back in. I think it took me 12 hrs to do it in 2 days, even with help from my bro. But I do notice a difference, especially when my intake kicks in around 4, but when it got to around 5.5rpm she took her longer to rev up to a higher rpm, but not with the pullies,.. its smooth as silk, but u know what sucks, I can only do 109 :-(