Not really. I hope that you at least have already done intake and exhaust first. You will feel and get more benefit from that than the pully's. Also, if you insist on buying the pulley's buy Unorthodox. Do not buy the AEM tru power pulley's. They are horrible. Very cheaply constructed. I had an awful time with them. When I bought my car they were on there, I ended up buying all stock pulleys to put back on. One of the best things I've done. I would spend that $300+ somewhere else myself but you have to decide what you want to do. Good luck.