Check the listing for details. Nitrous Express Proton Plus Nitrous Kit w/10lb Bottle. Condition: New, Made in United States. Listed at 605.04 USD. 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 a 10lb nitrous bottle with a high flow billet aluminum Lightning bottle valve, stainless bottle brackets, a single Shark nozzle, nozzle adapter, stainless braided nozzle lines, 15 foot braided stainless feed line, stainless fuel line, master arming switch,.