• Granatelli 50MM Ultra High Flow Blow Off Valve High-Performance
  • 0.625" lift for lightning-fast venting, protecting your turbo and improving throttle response
  • Includes psi spring daily/mild boost 15 psi spring high-boost
  • is designed for turbocharged applications that need more pressure-relief capacity than a conventional 50mm BOV
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Granatelli Motor Sports

Granatelli 50mm Ultra High Flow Turbo Blow-Off Valve – 540201

Granatelli 50mm Ultra High Flow Turbo Blow-Off Valve – 540201

SKU:'540201

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GRANATELLI ULTRA HIGH FLOW

SAME 50MM DIAMETER. A LOT MORE ROOM FOR THE AIR TO GET OUT.

The Granatelli 540201 50mm Ultra High Flow Blow-Off Valve is designed for turbocharged applications that need more pressure-relief capacity than a conventional 50mm BOV.

Its key advantage is a substantial 0.625-inch valve lift, creating more opening area for compressed charge air to escape quickly during throttle lift and helping reduce turbo compressor surge in high-flow forced-induction systems.

50MM
High-Flow BOV 		0.625"
Ultra High Valve Lift 		6 / 15 PSI
Spring Options

Why the Extra Valve Lift Matters

A BOV’s valve diameter is only part of its potential airflow. Valve travel also affects how much area is available for compressed air to escape. The 0.625-inch lift gives the 540201 significantly more opening travel for high-flow turbo pressure relief.

Best For

✓ High-boost turbo systems • ✓ High-airflow combinations • ✓ Drag racing • ✓ Street/strip builds • ✓ Customers needing more airflow than a standard 50mm BOV

Product Specifications

Part Number 540201
Product Type Ultra High Flow Turbo Blow-Off Valve
Valve Diameter 50mm
Valve Lift 0.625"
Finish Black Anodized
Springs 6 PSI & 15 PSI
Intended Use High-Flow Turbo Pressure Relief
WHY CHOOSE 540201: If your turbo system needs more pressure-relief capacity than a conventional 50mm blow-off valve but does not require the 64mm Anaconda, the Ultra High Flow 540201 fills that gap.

Key Features & Benefits

  • Application-focused Granatelli Motor Sports design
  • Built for dependable performance and service
  • Designed for enthusiasts, professional installers, and performance builds

Fitment & Installation

Confirm the part number, vehicle or engine application, dimensions, and supporting components before installation. Modified vehicles may require additional clearance, fabrication, calibration, or related hardware depending on the combination.

Frequently Asked Questions

What does a blow-off valve do?
A blow-off valve releases excess charge pressure when the throttle closes, helping manage pressure in the intake tract.

Will this work on a modified vehicle?
Compatibility depends on the complete vehicle combination. Confirm the listed application and supporting components before installation.

Why Choose Granatelli Motor Sports?

Granatelli Motor Sports develops performance components for real-world street, street/strip, race, and custom applications, with an emphasis on practical performance, dependable construction, and integration into serious automotive builds.