Competition Clutch Ultra Lightweight Steel Flywheels (STU suffix) are recommended for forced induction and/or track and rally racing applications. This flywheel is machined with less material to assist in quicker revving capabilities. Well-suited for Stage 3 and up clutch applications. Made of 4140 forged steel and are a one-piece design. Not all applications have the ST and STU versions available. Flywheel weights vary from 8lbs to 18lbs depending on application.
WarrantyThis Part Fits:
| Year | Make | Model | Submodel | 
| 2003-2006 | INFINITI | G35 | Base | 
| 2004-2006 | INFINITI | G35 | X | 
| 2005 | Nissan | 350Z | 35th Anniversary Edition | 
| 2003-2006 | Nissan | 350Z | Base | 
| 2003-2006 | Nissan | 350Z | Enthusiast | 
| 2005-2006 | Nissan | 350Z | Grand Touring | 
| 2003-2005 | Nissan | 350Z | Performance | 
| 2003-2006 | Nissan | 350Z | Touring | 
| 2003-2006 | Nissan | 350Z | Track |