25% underdrive pulley

Hey guys I need to change my pully cause if my idle pulley is rattling like it’s in a Mexican mariachi band, I’ve decided to go for powerbond 25% underdrive kit, I just wanna know if theirs anything else I need to change/check since the pulleys getting done. She’s a late model ‘10 S1 SS...

Installed a 25% Powerbond on my WH 5.7 Noticable increase in Throttle Response and the Engine seems to run alot smoother. Hi. My name is Dax and I'm having Charging issues... Last Friday afternoon. I had the Aircon on full noise (Not sure why, It was doing F-all anyway?), whilst sitting...