There's no such thing as NA1 wheels or NA2 wheels. NA1 and NA2 are chassis codes corresponding to the 3.0-liter and 3.2-liter engines, respectively.
These are the common OEM wheels with which the NSX was sold in North America:
- 15"/16" five-spoke wheels - these were on 1991-1993 cars, which were all NA1
- 16"/17" seven-spoke wheels (the paint color changed slightly beginning in 1997) - these were on 1994-1996 cars, which were all NA1, and 1997-2001 cars, some of which (those with automatic transmission) were NA1 and others (with manual) were NA2
- 17"/17" wheels - these were on 2002-2005 cars, some of which (automatic) were NA1 and others (manual) were NA2
There were some variations on these, such as the special 16"/17" wheels for the '99 Zanardi NSX and the optional 16"/17" wheels painted white, but that's it.