1990-1993Base · L4.1597cc
Notes: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1991SE · L4.1597cc
Notes: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1993LE · L4.1597cc
Notes: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1994-1997Base · L4.1839cc
Notes: 1994: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1995: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1996: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1997: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1999: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2000: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2001: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2002: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2003: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2004: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2005: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1994-1997M Edition · L4.1839cc
Notes: 1994: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1995: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1996: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1997: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1997STO · L4.1839cc
Notes: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
199910th Anniversary · L4.1839cc
Notes: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
1999-2005Base · L4.1839cc
Notes: 1994: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1995: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1996: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1997: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 1999: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2000: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2001: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2002: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2003: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2004: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2005: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
2000-2005LS · L4.1839cc
Notes: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
2000-2003SE · L4.1839cc
Notes: 2000: Adds +/- 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2001: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2002: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA" · 2003: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
2003Shinsen · L4.1839cc
Notes: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"
2004-2005Mazdaspeed · L4.1839cc
Notes: Adds 0.5deg camber - "Approved for Spec Miata in both SCCA and NASA"