The Magnuson nose drive is a complete assembly for your stock supercharger. If your bearings have gone bad, this replacement nose drive will get your car running like new again for a fraction of the cost of a remanufactured supercharger. Also, it significantly increases boost across the entire RPM range.With the pre-installed 3.4" pulley, approximate maximum boost is raised to 11.5 psi and approximate horsepower gains are 25-30 HP. The new nose drive shaft and pulley are keyed which means you can change pulleys as easy and as often as you like. Includes one pulley. Order additional pulleys separately.
IMPORTANT: a $150.00 core deposit will be charged to your credit card and refunded (in the form of a rebate check) upon return of your core to Magnuson.
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, a cat-back exhaust, and a Digital Horsepower PCM which are all available separately.
Also works with 2004-05 Monte Carlo SS and 2004-05 Impala SS, but NOT for 2004 Grand Prixs
Q: What is the difference between the Magnuson Nose Drive and the Pulley Boys pulley?
A: There are two main differences. First, the installation time on the Magnuson Nose Drive is potentially much longer than the Pulley Boys pulley because the supercharger needs to be removed for proper installation (it can also be done without supercharger removal). With the Pulley Boys pulley and pulley installation tool, the process can be done on a car without removing the supercharger. Second, with the Magnuson Nose Drive you get the advantage of being able to easily swap pulleys on the nose drive since it is a keyed drive. With the Pulley Boys pulley, you must go through the same installation process again if you wish to change sizes. For most people, one size change is all they'll ever do, so either solution works out to be the same. They both yield exactly the same power gains for the same size pulley.
Q: Where do I send my core return to?
A: Please Click here to fill out our core return form. Instructions are at the bottom. Please make sure to let us know when you have shipped your core by filling out this page.
NOTE: Please return your core to us within 60 days of receiving your nose drive. If we do not get your core within 60 days, you will forfeit your core refund.
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