25mm DOUBLE DUAL SUPERSONIC Adjustable Dump Valve

**Complete with screw in blank to reduce volume **

We have taken our dual port unit and fitted two supersonic trumpets to quite simply, make the blow off sound louder! (There is a screw blank included if its to loud for you though)

Please ensure you wish to fit an atmospheric valve to your vehicle before purchase. Most OEM Vehicles are fitted with recirculation units as standard (no noise).

Made from billet aluminium, our DOUBLE SuperSonic diverter valve vents some to the atmosphere to create the desired *woosh* sound.. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably and turns heads! IT also allows adjustability to the preload, to set it up to work in harmony with your driving style and engine.

Remember though, the volume is still only dependant on the level of boost being blown off. Even with the full open port nature of this valve, if you have a knackered turbocharger, boost leaks, or generally a super low boost setup, no valve is going to give you a big WRC blow off sound.

Our 25mm Dual Port valves will fit all Audi, VW, SEAT, Porsche and Skoda (VAG) 1.8T and 2.7 Bi-Turbo engines, as well as numerous other vehicles. Please see compatible vehicles above and below, or contact us if you are not sure if this valve is suitable for your application.

Features

- All aluminium construction, 25mm ports

- Direct OEM replacement

- Complete with 25mm bung for recirculation pipe

- Fully serviceable

- Top twist adjustable for pre-load

- Replacement for standard plastic Bosch diverter unit

- Boxed and brand new

- Fitting Kit Included

All items are to be fitted by a professional and no instructions are included for this reason.

Fitment List

· Ford

· Escort Cosworth

· Sierra Cosworth

· Escort RS Turbo

· Fiesta RS Turbo

· Focus RS Mk1

· Volkswagen

· Beetle 1.8T

· Golf MK4 1.8T

· Passat 1.8T

· Polo 1.8T

· Audi

· A3 1.8T

· S3 1.8T (8L Chassis)

· A4 1.8T (B5,B6 Models)

· S4 2.7 V6

· RS4 (B5) V6

· A6 1.8T (B5,B6 Models)

· A6 Allroad 2.7Bi-Turbo

· RS6

· TT MK1 98-06

· Seat

· Ibiza MK3 Petrol

· Ibiza MK4 Petrol

· Leon Cupra 1.8T

· Leon Cupra R 1.8T

· Saab

· 900

· 9000

· Skoda

· Octavia 1.8T

· Renault

· 5 GT Turbo

· Clio 172/182

· Lancia

· Delta Turbo

*Saab owners - Due to immense number of Saab turbo engines, please check you have an original black plastic OEM Bosch diverter valve before purchase. We do not recommend fitting an atmospheric valve to Saab units. No returns if you wish to try it.

Please be aware, you are fitting a unit that is atmospheric in its action. We cannot guarantee that you will not get fault codes if not fitted and setup correctly. We dont offer returns on items that have been 1, used, 2, trial fitted at home, 3, not fitted and setup by a professional outlet. This is the terms and conditions of buying this unit from us, buy purchasing the unit, you are agreeing to these terms.