I have been researching on this website and more about getting an agencypower underdrive pulley. Is this a good buy and will I see any gains?

 

Maybe not HP gains if that's what your hoping for. You will see faster revs but not necessarily more power. Just Don't under drive the water pump.

 

@catty, the AP underdrive pulley under drives everything as its the main pulley off the eccentric shaft.

@OP i have the AP pulley, i like it. do i think its worth $150, no. if you can find it cheap i would grab it.

 

meh, its not worth it. Its more or less another "asthetic" modification