I've been reading a lot of stuff lately, and came accross an article about messing with pulleys. Basically, it says the SC pulley is ok, but when you change the sizes of those for the alternator or water pump, you could be in for trouble down the road.
The key seemed to be not to under-drive the alternator, or water pump. The former beacuse you'll stress the battery, and the latter because you'll lose cooling efficiency.
Any remarks from those with real world experience? I'd like to know if you've even noticed any differences.
2000 SSEi; Silver, Grey interior
K&N filter, removed MAF Screen, TOG Headers, 3.4 Pulley, MSD Coils, Taylor wires, 180 Thermo, Pirelli P-Zero M&* tires, J.A.T.O. Booster in trunk