1. The blow off valve plate is installed between the existing solenoid valve and the turbocharger housing, which stops the recirculation of hot air and reduces hysteresis. 2. Increases the torsion of blow off valve, prolong the service life of turbo engines. 3. Improve reaction of the turbo, vent spare boost air into the atmosphere instead of sending it back into the engine pipe. 4. Offering desirable atmospheric blow-off valve sound, enhance turbo engines' high performance. 5. Made of high quality aluminum alloy material, corrosion resistant, reliable for long time use. 6. For Honda Civic 2015-2021
