Both weigh the same and both seem to be a great upgrade...is there a better one between the two?? Have a COBB AP 2.0 Stg 1 WRX '06 wagon...the stage 1 OTS map won't have any problems with this upgrade right?? Thanks in advance for any advice.

 

you shouldnt have any problems, I just got the perrin pulley myself

 

I use the UR version and and it fit perfect and after 15k I have no issues.

 

Cool thanks...i guess I just have to figure out whether I want a blue, gold or black one!

 

Word on Perrin's. They are supposed to be a dark gray in color... they sometimes have 'issues' on the anodizing. Mine is more like Lavender then Anthracite ~ since you are concerned with color. It works just fine and was a great mod ~ freed up the revs up and it felt a bit snappier!