The first generation Acura NSX definitely has a timeless design. However, some aspects of it are dated now. A quick, easy and cost-effective way to modernize your NSX is to update the lighting, both inside and out.
Hardwiring your radar detector, in this case a Valentine 1 (commonly referred to as a v1), is a required mod on pretty much any car. It saves you from using one of your available cigarette lighter sockets, allows you to mount the radar high up on the windshield and most of all, it gets rid