Boomba Racing Full Recirculating Bypass Valve | 2015+ VW Golf GTI MK7 (035-00-004)

Boomba Racing Inc.
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Boost Operated Blow Off Valve

Want the added strength and performance of our Blow Off Valve but not the biggest fan of the added noise? Search no longer! Introducing the Boomba Racing Bypass Valve. This piece is very similar to our Blow Off Valve, but rather than venting to atmosphere, this vents back to intake. Also, for all you Europe Spec/MAF tuned cars: THIS PIECE IS 100% SAFE TO RUN!

This kit will replace your weak and leaky OEM bypass valve in favor of something much more up to the job. The Boomba Racing Boost Operated Bypass Valve comes with everything you need [including a manifold boost tap] to install on your vehicle for a true plug and play installation. It features 100% recirculation operation and billet aluminum construction with a brass piston to ensure leak-free operation for years to come.

The Boomba Bypass Valve uses an ECU controlled solenoid that provides the bypass valve with both vacuum and boost pressure. Using boost to close the valve keeps it sealed no matter what the boost pressure is. The higher the amount of pressure, the stronger force there is keeping the valve closed. Vacuum is used to keep the valve open in this configuration. This with the combination of the ECU controlled solenoid prevents the valve from any fluttering or premature opening. This also works to eliminate any unwanted pressure spikes during venting. The purpose of this bypass valve is to prevent turbo lag and allow the car to hold boost in a steadier manner. When the throttle plate closes, excess boost pressure is vented so that the turbo can continue to spin during higher RPMs rather than surge from backpressure. The bypass valve is tested to over 75 PSI to ensure leak-free operation. The electrical connection on the provided solenoid matches right up with your factory wiring and there is no need to splice or trick your ECU with resistors.


  • 2015+ Volkswagen Golf GTI (Mk7)


  • Compatible with MAF tuned / EU market vehicles
  • Internal brass piston design
  • Pressure tested up to 100psi
  • No tune required
  • CNC'd from aircraft grade billet aluminum

What's In The Box?

  • 1 - Recirculating Bypass Valve
  • Wiring, Plumbing, and Hardware


  • Manufacturer's Warranty

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