Aluminium Atmospheric Blow Off Valve for Volkswagen Golf GTI 1.8T Jetta A3 A4 Beetle
Upgrade your VW/Audi turbo setup with the Volkswagen Golf GTI BOV Aluminium Atmospheric Blow Off Valve. This universal atmospheric BOV is designed for the 1.8T engine family and is compatible with multiple models, including Volkswagen Jetta, Golf GTI, Audi A3, A4, A6, TT, and Beetle. It vents excess boost to atmosphere, delivering a crisp, audible blow-off sound while protecting the turbo from compressor surge. The result is improved throttle response, more consistent spool, and a satisfying turbo note that enthusiasts crave.
Built from aircraft-grade aluminum 6061 for strength and light weight, the valve features a 25mm inlet to fit common intercooler piping and a robust dual piston design that adds a distinctive blow-off tone. A hard spring supports fast, predictable response aligned with 1.8T ECU behavior. This unit is a universal fit intended for 25mm connections and is designed to work with 1.8T engines across VW and Audi platforms, including Jetta, A3, A4, A6, and TT. Note: for 2.7L Bi-turbo engines, two BOVs per car are recommended.
Benefits & Tips
- Improve throttle response and reduce compressor surge by venting boost at the moment of gear change or throttle lift, resulting in smoother shifts and more confident acceleration.
- Enjoy a distinctive, sporty blow-off sound that enhances the driving experience without compromising reliability when installed correctly.
- Durable, lightweight aluminum construction ensures long service life under daily driving and spirited sessions alike; ideal for enthusiasts upgrading factory memorabilia to a performance setup.
Product specifications
- Model: UP-1128
- Material: Aluminum (6061, aircraft-grade)
- Inlet size: 25mm (.986 inches) OD
- Type: Atmospheric Blow Off Valve (BOV) with dual piston design
- Engine compatibility: For Volkswagen/Jetta/A3/A4/A6/TT 1.8T engines; For Audi 1.8T engines
- Fitment: Universal 25mm inlet; 4-cylinder configuration
- Special features: Designed to work with 1.8T ECU, dual piston design for audible blow-off
- External testing certification: ISO9000
- Origin: Mainland China
Package includes:
- 1X BOV Blow Off Valve Kit
Warnings/Reminders
Professional installation is highly recommended. No installation instructions are included with this kit.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
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