always a risk trimmin' down pulleys...but, it's their car. I like to see some miles on pulleys before being interested. It took awhile to perfect the Code 3, and Brandon was good to work with. My 1st one wasn't perfect, he replaced it right away. Great customer service. The company who bought him out chose not to continue the pulley. Eurocharged is full of good people and I know they would back their pulley as well. So, when looking, make sure you are looking at a proven pulley when buying used. Or, new for that matter. But, trimming stock pulleys isn't something I would be a fan of. Especially the kind of performance I expect out of my cars...Just save those $$$$$$$ and pulley up...lol