• Patented (US D1,028,015 S)

What’s Included

• 1 × ADD W1 Blow Off Valve
• 1 × Interchangeable Adapter (selected size)

Adapters are available in multiple inlet sizes to suit different setups:
19mm / 25mm / 32mm / 34mm / 38mm

The adapter can be:

• Welded directly onto the charge pipe
• Or used with the appropriate inlet size insert for a secure fit

Available in multiple color options to match your build:

BOV:        Black / Red  
BOV Pro: Black / Red / Black-Red

High-Performance Universal Blow Off Valve – Built for Turbocharged Engines

Upgrade your turbo system with the ADD W1 CNC-machined aluminum blow off valve, designed to handle high boost pressure and protect your engine from compressor surge.

Under high boost conditions, excess pressure can cause turbo flutter or compressor surge, leading to potential damage to the turbocharger and intercooler system. This blow off valve releases trapped compressed air when the throttle closes, ensuring smoother operation and improved reliability.

✅ Key Benefits:

• Prevents compressor surge and turbo damage
• Reduces turbo lag and improves throttle response
• Protects intercooler piping and intake system
• Extends turbocharger lifespan
• Stable performance under high boost conditions

Precision CNC-machined from high-quality aluminum, this blow off valve delivers durability, fast response, and consistent performance for both daily driving and performance builds.

Blow Off Valve Standard vs Pro

Standard Blow Off Valve

• Reliable performance for everyday driving
• Smooth and consistent pressure release
• Balanced sound and response

 Pro Blow Off Valve

• Built for higher boost and performance setups
• Reinforced internal design for durability
• Faster response under load
• Louder, sharper blow-off sound

Which One Should You Choose?

• Choose Standard for a clean, reliable upgrade with smooth performance
• Choose Pro for enhanced response, durability, and a more aggressive sound

The Pro version delivers quicker response and a sharper discharge sound, making it ideal for drivers looking for a more performance-focused driving experience.

Why Upgrade Your Blow Off Valve?

A quality blow off valve is essential for maintaining turbo efficiency and preventing unnecessary stress on your system. It ensures proper pressure release, improves drivability, and protects critical components under boost.