Forge Motorsport has developed this high flow vacuum operated single piston valve for the Audi S1 2.0. Designed primarily to ensure that high volumes are discharged quickly to the atmosphere, whilst creating the sought after sound. Everything required for the installation is supplied along with comprehensive instructions. This can be used on either a stock or a mapped car. 
Please note that red hose is available but it will be a special order. Please call us for more information.
 
In The Box:
1 x Atmospheric Valve
1 x Wiring Harness
1 x Solenoid, Bracket, and Screws
1 x Blanking Plate
1 x 2000mm of 4mm Vacuum Tube
3 x Hose Clamp
1 x P-Clip
1 x Silicone Hose 
12 x Cable Ties
1 x Bracket
1 x Brass T Piece
1 x Instructions
1 x Forge Sticker