AEM underdrive pully

[bgsteve523]

I see there are some underdrive pully's for our si I was wondering what they do and how hard of an install it might be.
Thanks,
Steve O

[D16Y8_Turbo]

Is it an accessory pulley set or the crank pulley?

I had the accessory pulley set by AEM on my Turbo EX. I didn't like how the lights reacted while the car was idling. A/C and fan were weak while idling as well. Personally, I wouldn't waste your time with the accessory pulley set but the lightened crank pulley is a better choice in my opinion in terms of performance.

Other question about the underdrive pulley sets shoot me a PM.

[bgsteve523]

What would the crank pully do performance wise? How hard is install on one of these?
Thanks,
Steve O

[Peking]

Originally posted by bgsteve523
What would the crank pully do performance wise? How hard is install on one of these?
Thanks,
Steve O

This was somewhat covered in the past (also on clubrsx.com). Folks said that on this ride the pullies were fine enough. So I guess you won't see much performance. Not worth the time and money IMO, unless you want some eye candy when folks look under your hood.

[SiRman]

The lightened cranck pulley has the same effect as a lightened flywheel. Reduces rotating mass attached to the crank assembly.