Check the listing for details. 20421-05 Nitrous Express Proton Plus Nitrous System - 5 lb Nitrous Bottle. Color: White, Condition: New. Listed at 576.45 USD. 20421-05 Nitrous Express Proton Plus Nitrous System - 5 lb Nitrous Bottle Included Description: Proton nitrous systems combine performance, durability and value in a compact and easy to mount, made in the USA, nitrous / fuel module. Proton systems now contain a new and improved nitrous / fuel module that is capable of producing up to 250 horsepower to the wheels! The new nitrous / fuel module is extremely durable and is compatible with progressive nitrous controllers. This Proton Plus system includes jetting for 35HP, 50HP, 75HP, 100HP, 125HP and 150HP but can flow up to 250HP with the optional SHO jet kit. This system includes: Stainless bottle bracketsSingle Shark nozzleNozzle adapterStainless braided nozzle lines15 foot braided stainless feed lineStainless fuel lineMaster arming switchWide open throttle switch40 amp relayRelay harness5 lb nitrous bottle with a high flow billet aluminum Lightning bottle valve As well as every nut, bolt and electrical connector needed to complete the installationFits all electronic fuel injected vehicles with a single throttle body. 5 lb Nitrous Bottle Not Included Shipping is FREE inside the contiguous United States. If shipping to Alaska, Hawaii or Puerto Rico please message us for a quote for additional shipping costs.