water/alternator pulley
The replacement pullies are smaller+ lighter so your engine dosen't waste energy turning them and more to the wheels, it does improve performance probally no more than 5 hp at the wheels but not sure about that hp #
I personally wouldn't buy a much smaller pulley, underdriving really doesn't worthwhile results, and belts can sometimes slip because of less contact area. Especially on I4s. Lighter pulleys shouldn't be a problem though.
There was controversy about aftermarket crank pullys a while back..some people won't use them others will. You can do a search, there's stuff here that will help you..I think everything that can be covered on the pullys has already been covered. Personally, I have the pullys on and they do make a difference speed wise.
kSpec used to have water and power steering I think? They took them off the site, but I would think they could still get them. I think they took them off because the power steering pulley wasn't machined properly.
ok but my 1st question was never answered lol, do new power steering and alternator pulleys really help? i know a new crank helps alot ive heard


