This Maserati blow off valve (also known as pop-off or bypass valve, part number 571365700) is a direct replacement for turbocharged Maserati models such as the Biturbo, 3200GT, Ghibli, and Quattroporte. It plays a critical role in protecting the turbocharger and maintaining smooth throttle response by releasing excess pressure during gear changes or throttle lift-off.
Built to OEM specifications, this bypass valve helps prevent compressor surge and boosts long-term turbo reliability. It ensures proper pressure relief while maintaining consistent boost during acceleration. If you’re noticing performance drops, fluttering noises, or inconsistent turbo behavior, this is a must-replace part.
The valve features a rugged metal body, spring-loaded diaphragm, and precise fitment to factory piping—ideal for stock or lightly modified engines.
Technical specifications:
- Part type: Turbo blow off / bypass valve
- OEM part number: 571365700
- Compatibility:
- Maserati Biturbo (turbocharged variants)
- Maserati 3200GT
- Maserati Ghibli (Biturbo era)
- Maserati Quattroporte (Biturbo era)
- Function: Releases excess boost pressure
- Material: Cast aluminum or alloy with spring mechanism
- Installation: Direct-fit with OEM hoses
