Installation Instructions Available Video for this product is available


Application: 1986.5 to 1995 Porsche® 928 all

Easy Installation! Our kits come with everything you need to do the complete installation yourself. The Stage 1 kit is our easiest kit to install because it does not require a separate intercooler system. Plus, because the Raptor V supercharger used in these kits is self-contained - with permanently lubricated bearings - the need for oil lines to and from the engine is eliminated. Typical installation time: 8 hours complete!

Top Technology! The 928 Motorsports Stage 1 Supercharger kit for the late-model Porsche® 928 will provide more horsepower and torque and do it efficiently, reliably and quietly with no loss of drivability or daily ease of operation. You will substantially increase your 928's acceleration and fun-factor! This rugged supercharger's precision construction and the exclusive ceramic-coated impeller assures full high speed 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 1991 Porsche® 928 with manual transmission (photos below) produced 413 HP at the tire and 475 HP at the engine, up from the stock numbers of 271 HP at the tire and 312 HP at the engine. A gain of 142 HP! We did this at less than 5 pounds of boost for a nice, safe installation with no need to change head gaskets.

Street-proven and Tested Tough: This kit has been sold to dozens of 928 owners and tested for more than 5 years and thousands of miles. It is rock-solid and dependable. Perhaps the best SC kit we have ever designed! You benefit from our experience!

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

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.

Item Part Number Price (USD) Shipping*
STAGE 1 SUPERCHARGER KIT for Porsche® 928 SUP-928STG1-32V-87/95 $5,695.00 U.S. Only: $120.00
All Others:

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