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

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.

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.