NOS The NOS "Plate Only" kit allows our customers to build a custom nitrous system for their 2010-2015 Chevrolet Camaro, or any application using a GM LS style, 90mm, 4-bolt throttle body. This ultra-slim design is only ¼" thick at the throttle body mounting flange. This allows maximum room forward of the throttle body to clear accessory drives, tensioner brackets or other obstacles that may interfere with a more forward mounted throttle body.