Nitrous Express Proton Plus Nitrous Kit w/15lb Bottle (20421-15) 1638 Some applications may require a

Some applications may require a tachometer adapter

Flange Inside Dimensions: 5

Increase engine performance with the Air Intake for Nissan 350Z

ensuring our valuable customers are not tricked into purchasing an inferior

Nitrous Express Proton Plus Nitrous Kit w/15lb Bottle (20421-15) 1638 Some applications may require aProton Series nitrous systems combine performance, durability and value in a compact and easy to mount module. Proton systems contain high quality, made in the USA, solenoids that are capable of producing 150 horsepower to the wheels. The black anodized aluminum housing not only looks great, it pulls heat away from the solenoids for extreme durability. This Proton Plus system includes jetting for 35HP, 50HP, 75HP, 100HP, 125HP and 150HP. This system