This original hybrid clutch system is something we have been testing for a few years on a few high HP Gt30 Viggens. After years of disappointment with aggressive and short lived stock size disks trying to hold the power. We designed and manufactured a Flywheel to hold the larger 240mm diameter 9-5 clutch while still fitting in the smaller 9-3 bellhousing.
We are certainly not a clutch manufacturer.. there are lots of those with many options for the 9-5.. In the long run spares availability will be very easy. The 9-5 Aero is the same clutch used in the LSJ Cobalt GM Performance kit and is quite an upgrade from the Viggen clutch with less pedal force.
X240 Lightweight Billet Aluminum Flywheel For NG900/9-3 Replaceable friction surface for long lifespan if you use an aggressive disk. Lower inertia gives faster revving and improved shifting. Stock Flywheel weighs 15.4lbs This one is 8.5lbs. CNC machined in Springfield, MO We used stepped locating dowels and a bolted ring gear for extra security.
Works only with 240mm 9-5 Clutch and Pressure plate.
Ng 900 94-98 Turbo
9-3 99-02 +03cv 2.0 and 2.3 Including Viggen.