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STAGE 2 SUPERCHARGER KIT for 1985/86 Porsche® 928

Video for this product is available Product Installation Services Available

Application: 1985 and '86 32v Porsche® 928

Easy Installation! Our kits come with everything you need to do the complete installation yourself. Plus, because the Raptor V supercharger used in these kits is self-contained the need for oil lines to and from the engine is eliminated. Typical installation time: 14 hours complete including the intercooler system!

Top Technology! The 928 Motorsports Stage 2 Supercharger kit follows our years of supercharger kit development with top-of-the-line components and a complete air-to-water intercooler system. This kit features a dependable and powerful Raptor supercharger providing dependable performance at all RPM's along with outstanding reliability and quiet operation. No special care or maintenance is needed.

Dyno-proven Results: This Supercharger kit installed on a 1985 Porsche® 928 with manual transmission (photos below) produced 390 HP at the tire and 459 HP at the engine, up from the stock numbers of 260 HP at the tire and 306 HP at the engine. A gain of 153 HP! We did this at less than 6 pounds of boost for a nice, safe installation with no need to change head gaskets.

Some Features:

  • Designed to allow your Air Conditioning to remain in place and function.
  • Does not require oil lines running to/from your supercharger; simplifies installation and reduces oil leaks.
  • Does not require removal of the intake manifold or fuel system to install.
  • Does not require removal of the timing belt cover(s) to install.
  • Complete kit has been Dyno-tuned and tested, safe for your motor.
  • Complete kit includes every part you need and detailed instructions.
  • Designed to be installed by the average mechanic/or owner.
  • Tech Support provided at (920) 485-0928.
  • Uses the advanced and highly-efficient Raptor supercharger.
  • The only centrifugal supercharger machined from billet, not castings.

Complete Kit: In addition to the Supercharger, brackets, all hardware, and tubing specific to your vehicle, 928 Motorsports also provides you with:

  • 928 Motorsports Billet Aluminum Anodized Crankshaft Pulley
  • 928 Motorsports Cold Air Intake System with K&N Filter
  • 928 Motorsports Custom Intercooler
  • 928 Motorsports Special Front-Mounted Intercooler Heat Exchanger
  • Extra-High Flow Electric Water Pump
  • High Performance Blow-off Valve
  • SKF Idler/Tensioner Pulley Assembly
  • Two Auxiliary Electric Fans
  • All required silicone hoses and elbows
  • All required tubing and clamps
  • All required metric hardware
  • Excellent Assembly Instructions and Tech Support

Download the Installation Manual and See for Yourself! Many answers to your questions can be had by having a look at the quality of our Installation Instructions.

Warranty: These are factory NEW kits and are warranted direct to you. The Limited Warranty covers any and all defects in workmanship and material, regardless of mileage incurred during the warranty period.


Part Number

Price (USD)



STAGE 2 SUPERCHARGER KIT for 1985/86 Porsche® 928




Typically 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