When upgrading the stock halogen / incandescent lamps to led lighting bulbs, the bulb size guide will be much helpful, below are the bulb size guide for 1991~2005 Acura NSX; yet it is for reference only, it is suggested to check the owner manual to confirm the bulb size guide is correct before purchasing.
- High Beam Headlight: 9005
- Low Beam headlight for 1991~2001 Acura NSX: 9006; for 2002~2005 Acura NSX: D2S
- Fog light for 1991~1993 Acura MDX: H3
- Front turn signal light ( blinker light ): 3497
- Rear turn signal light: 3497
- Brake ( Stop ) Light: 2057
- Outer Tail Light: 2057 ; Inner tail light: 168
- Back-up reverse light: 1156
- License plate light / Tag light : 175
- Interior Dome Light : DE3175 / DE3022
- 3rd Brake light/ Center high mount stop light: LED
- Glove box light: DE3022
- Front and rear side marker light: 168
- Trunk / Cargo area light: DE3021
- Interior door light: DE3021
- Stepwell light for 1991~1997 Acura MDX: DE3021; FOR 1998~2005 Acura MDX: 168
- Parking light: 3652 / 168
- DRL / Daytime running light: 1156
Vehicles incluces: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Acura NSX
