Check out this install write up and review by one of our sponsored drivers on the Agency Power Mazda RX8 crank pulley.

Well my fiancée & I picked up the Agency Power Underdrive Pulley for our RX8 after talking with Dan down at Vivid Racing & doing some research online. I hadn’t heard anything bad & have enjoyed all the other products from AP, so I went ahead an ordered it & got it here with no problems. I took the car down to my local hobby shop &  started the task of installing the item with a buddy of mine. Removing the Underdrive Pulley from the box I was thoroughly pleased with the craftsmanship of the pulley. It looked great in the anodized blue with the etched Agency Power logo & was surprisingly light. Plus it came with two supplied belts & no need to run to the store to try & track a belt down. After staring for a bit, I got down to the actual task of removing the old & installing the new. Upon pulling off the old, two piece crank pulley I noticed definite advantage to the more lightweight AP Pulley. Throwing them each individually on the scale, I noticed about a 75% weight reduction as the AP UD Pulley weighed in a measly .5lb  compared to the already light 2lb stock pulley. Next came the reverse order of putting the new AP product on. No complaints here. The pulley fit right on, with no adjustments or hassles! After tightening everything up & closing the hood, I head out to the open road with the new install. Over-all I have no complaints about the Agency Power Underdrive Pulley. Been a few weeks & still no problems & a definite small improvement for the motor, freeing it up just a bit more allowing it to rev better & faster than before.

Good Job Agency Power

Project 8

Team Vivid