Magnuson Nose Drive for 3.8L Supercharged V6
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With the pre-installed 3.4 inch 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 3.4 inch pulley installed. Order additional pulleys separately.
IMPORTANT: a $165.00 core deposit will be charged to your credit card. Upon return of your acceptable core to Magnuson, $150 of that core charge will be refunded to your credit card. Please allow about 2 weeks for the refund to process after your core has been received.
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.
Application: GM 3.8L Series II V6
Magnuson's official instructions are available by clicking here.