Audi S5 2008-2009, Proton Series Nitrous System by Nitrous Express®. 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.
- Single Shark Nozzle
- 35, 50, 75, 100, 125, 150 WHP
- 10 lb. Bottle w/Lightning 45 Bottle Valve
Nitrous Express® started in 1996 because they knew they could offer nitrous systems that out performed anything on the market right out of the box. Nitrous Express had an advantage; they got to start with a blank sheet of paper. NX were able to manufacture our components with all the hot rod modifications built in. This allowed our customers to achieve better results right out of the box than other racers who were paying big money to modify our competitors’ parts. It was like a breath of fresh air!