Product Details: The 1.8T Audis offer a unique blend of European quality, comfort and style together with sporty and secure handling and a 110kW and 210Nm turbocharged and Intercooled twin cam engine. In the past fitting a BOV to these models was not as simple as it is for other cars, thanks to an ECU that is particularly sensitive to vent-to-atmosphere BOV's. The GFB Hybrid, Stealth FX and Deceptor Pro BOV's are THE best option for these cars; they won't cause the ECU to illuminate the 'check engine' light, and will still give you the signature BOV noise!

Designed as a replacement for recirculating-type factory valves, and also for those who prefer to remain inconspicuous! Features superior boost holding and throttle response compared to a standard factory unit, and looks great under the bonnet too.

Take note of the following points, and fitting a GFB BOV to your Audi will be simple.

1) On all Audi turbo engines, the factory plastic Bosch diverter valve is installed in the reverse direction to conventional bypass valves, with boost pressure entering the side of the valve and dumping through the bottom. Therefore when installing a GFB valve, it must be installed in the REVERSE direction compared to the factory one (boost must enter the GFB unit through the bottom, and dump through the side). This is essential for the valve to operate properly. Incorrect orientation of a GFB valve will prevent the piston from opening.

2) Many of the 1.8T engines use crimped-on hose clamps on the factory diverter valves, which are not re-useable. New hose clamps are required for installation in such cases.

Notes:

-Required Adaptor: 5025 and 5225
-Direct Bolt On

*1002A Comes with fittings for Audi Vehicles. The 1002 comes with Standard Fittings*

Fits: Audi - All 1.8 Turbo models (1996 – Current)