BOV Kompact Plumb Back 34mm

The BOV Kompact Plumb Back 34mm from TURBOSMART USA is a compact blow-off valve designed for turbocharged engines operating at moderate boost levels, particularly in street-focused applications. This product is ideal for tuners and enthusiasts who prioritize noise control and reliability, making it suitable for stock-appearing builds and emissions-compliant vehicles.

The plumb-back configuration of this valve recirculates boost pressure back into the intake manifold, which helps maintain consistent turbo spool characteristics without the distinctive BOV chirp. The 34mm bore size strikes a balance between flow capacity and response speed, making it effective for naturally aspirated engines transitioning to boosted power or moderate forced-induction setups. Turbosmart's proven poppet valve design ensures reliable operation across throttle cycles, preventing compressor surge while maintaining consistent intake manifold pressure.

This valve is particularly beneficial for street and mild performance builds on four-, six-, and eight-cylinder turbocharged platforms, especially those utilizing factory or near-stock manifolds. Its compact design allows for straightforward installation in tight engine bays, where larger atmospheric BOVs may interfere with other components. Overall, the BOV Kompact Plumb Back 34mm is an excellent choice for those looking to enhance their vehicle's performance while maintaining a discreet appearance.