Check the listing for details. 15184NOS NOS EFI Nitrous Wet Plate - Mopar. Color: Black, Condition: New, Made in US. Listed at 327.95 USD. 2005-2020 Dodge and Chrysler 5.7/6.1L Gen III Hemi Nitrous Plate Only Kit. Includes 80mm wet design plate, mounting hardware, and jets.. The NOS "Plate Only" kit allows our customers to build a custom nitrous system for their 5.7L and 6.1L Gen III Hemi powered muscle car, with the standard 80mm throttle body. This slim design is only 1/2" 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.. Recommend 1 - 2 steps colder spark plugs. No projected tip, fine wire or iridium spark plugs. Power levels in excess of 75 hp should use a racing/high octane rated fuel. Power levels of 200+ hp may require a fuel system upgrade.