Exceeds factory quality and installs in less than an hour. Coated black, this pulley looks very much like a stock pulley.

NOTE: PFYC recommends adding a transmission cooler when you upgrade your supercharger pulley. This will provide extra protection to your transmission under higher horsepower and torque situations. Also recommended to realize the full potential of the pulley and to get maximum throttle response are a cold-air intake and a cat-back exhaust with U-bend removal, all available here. These pulleys will only fit on factory nose drives and are finished in black zinc chromate coated steel. Please make certain you read the Q & A section below before choosing your pulley.

Also fits 2004-2007 Grand Prix, 2004-2005 Monte Carlo SS and 2004-2005 Impala SS.

NOTE: Care must be taken when replacing your pulley. Use the right tools and if necessary, get help from a friend or professional.

Q: Will the 3.25" or 3.00" pulley give me more horsepower?
A: Not necessarily. When using any pulley smaller than 3.4", a lot of additional heat is generated by the additional boost. This additional heat may cause detonation which in turn will cause knock retard, robbing you of horsepower. If you are not doing something to prevent the detonation caused by a higher temperature intake charge, we recommend you stick with the 3.4" pulley.

Q: What if I want the option of swapping pulley sizes but don't want the hassle of installing a Magnuson Nose Drive?
A: The Pulley Boys Qwikchange Pulley System is your answer. Installation of the hub is done just once and afterwards swapping pulleys is an easy 3 minute procedure. Even if you don't have an interest in swapping pulley sizes now, you may in the future and we recommend you take a close look at the Pulley Boys Qwikchange Pulley System. A link can be found in the Related Products section below.