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Upgrade Kit For The '78-'84 Porsche® 928 16v Stage 2

Supercharger Kit Warranty and Quality Information
Our Supercharger components have been on street and track since 2001! Buy with confidence,
and expect the best in installation assistance from us at (920) 485-0928

Product Installation Services Available

So you installed the Stage 1 Supercharger kit and you love it. And you want more. We understand! We designed our 928 spercharger kit to be upgradeable. This kit includes everything you need to take your Stage 1 kit from us and raise it to the level of our Stage 2 kit.

The Stage 2 Upgrade Kit comes with everything you need to do the complete installation yourself. The Stage 2 kit includes our custom 928-fitted air-to-water intercooler and requires some reasonable mechanical skills to install.

What is included in this UPGRADE Kit:
  • Powerdyne 9 psi pulley for the BD-11a
  • 928 Motorsports Intercooler
  • 928 Motorsports Intercooler pump
  • 928 Motorsports Intercooler radiator with electric fan
  • All required silicone couplings
  • All required tubing
  • All required hose clamps
  • Assembly Instructions and Tech Support

*Your results may vary as many factors like engine condition and driveline condition play a large factor in HP at the wheel. No 928 should be supercharged unless it is mechanically in good-to-excellent repair. Please see and read our article: "The rules about Supercharging your CIS 928"


Price (USD)



Upgrade Kit For The '78-'84 Porsche® 928 16v Stage 2



Ships in 4 Weeks or Less

* Domestic US shipping shown. International shipping will be calculated based on location.


Phone: (920) 485-0928
Email: info@928motorsports.com

928 Motorsports, LLC - All Rights Reserved
Horicon, Wisconsin USA

928Motorsports.com - Performance Parts for your Porsche® 928