Noticeably improved engine response and acceleration, OE to mild gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for street and race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability
This Part Fits:
| Year | Make | Model | Submodel | 
| 1999 | Mazda | Miata | 10th Anniversary | 
| 1990-1997,1999-2005 | Mazda | Miata | Base | 
| 1993 | Mazda | Miata | LE | 
| 2000-2005 | Mazda | Miata | LS | 
| 1994-1997 | Mazda | Miata | M Edition | 
| 2004-2005 | Mazda | Miata | Mazdaspeed | 
| 1991,2000-2003 | Mazda | Miata | SE | 
| 2003 | Mazda | Miata | Shinsen | 
| 1997 | Mazda | Miata | STO |