When your turbo builds boost, it deserves a valve that can keep up. The BSI Inc. 50mm blow off valve delivers high-flow surge protection for demanding turbo builds, backed by a Canadian performance specialist that knows turbo systems inside and out.

Features & Benefits

• High-flow 50mm valve diameter: The generous 50mm bore handles serious boost levels without restriction, making it a strong fit for daily street cars, dedicated track setups, and high-output diesel applications.
• Compressor surge protection: By venting excess boost pressure when the throttle closes, this valve helps protect the compressor wheel from destructive surge and supports turbocharger life.
• Improved throttle response: Rapid pressure relief helps the turbo spool back up faster on the next pull, supporting sharper, more responsive performance across the rev range.
• Built by a Canadian performance specialist: Designed and sold by BSI Inc., a Canadian turbo parts manufacturer, with Canadian shipping and real support behind every order.
• Universal fitment for turbo builds: This universal turbo component is compatible with gas and diesel applications alike.

Protect your turbo investment with a blow off valve engineered for performance — built in Canada and ready for wherever your build takes you.

FAQ

What does a 50mm blow off valve do?

A 50mm blow off valve vents excess boost pressure when the throttle closes, helping protect the compressor wheel from destructive surge.

Is this 50mm blow off valve compatible with gas and diesel turbo builds?

Yes. This is a universal turbo component compatible with gas and diesel applications alike.

Who makes the BSI Inc. 50mm blow off valve?

It is designed and sold by BSI Inc., a Canadian turbo parts manufacturer, with Canadian shipping and support behind every order.

How can this valve help throttle response?

Rapid pressure relief helps the turbo spool back up faster on the next pull, supporting sharper, more responsive performance across the rev range.