Which pulley would be best for the STi, there are two below I have found. Any comments about either would be helpful

APS (Auto Speed Performance) -> http://www.autospeedperformance.com/

OR

PERRIN PULLEY -> http://www.perrinperformance.com/pro...ley/pulley.htm


Or any other suggestions would be great.

 

I would recommend Perrin. It's a little lighter, they have more expierence with subaru's, and it's made for the STi. ASP has it for the WRX and "all 2.5 4-CYL Engines" that means RS, TS, Legacy, Baja, Forester. I would rather have a product built specifically for the exact make and model of vehicle I was putting it on. Given that ASP makes it out of a little stronger material, but honestly how much abuse will a pulley take?