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Magnuson Superchargers MP112 Radix 90mm Supercharger J-Tube Kit


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  • Model: MAG-31-12-00-081-SL
  • Manufactured by: Magnuson Superchargers

Please allow 1-5 business days for product to ship. Most items are dropped shipped from manufacture.


Increase the size of your throttle body to 90mm with this inlet! Gains of 20-30 rwhp have been seen with this upgarde!!



  • ALL GM trucks equipped with Magnuson Radix with the MP112



  • 90mm Inlet "J-Tube" in powdercoated silver finish
  • Loctite gasket maker (518)
  • GM throttle body o-ring for 90mm Throttle Bodies

Note: This will not allow for the EGR on early GM trucks, you will need to elminate the EGR for this to work.

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