Granatelli Motor Sports 50MM BOV - Ultra High Flow Blow Off Valve 540201

Granatelli 50MM Ultra High Flow Blow Off Valve
Built for boost junkies and horsepower hunters, the Granatelli 50MM Ultra High Flow Blow Off Valve isn’t just a part — it’s protection, performance, and pure turbocharged attitude in one sleek package.

Whether you're chasing peak numbers on the dyno or holding the line at full throttle, this BOV is engineered to handle serious pressure. The oversized 50mm valve and massive 0.625" lift allow for lightning-fast pressure release, reducing compressor surge and keeping your turbocharger safe — while unleashing that crisp, unmistakable turbo blow-off sound.

With its black anodized finish, this valve doesn't just perform — it looks the part too. It’s corrosion-resistant, track-tested, and street-proven. Swap between the included 6 psi and 15 psi springs to dial in your setup for street or strip.

What’s in the box:
• 1x 50MM Ultra High Flow Blow Off Valve
• 1x 6 psi Spring (perfect for daily & mild boost setups)
• 1x 15 psi Spring (ideal for high-boost applications)

Whether you're building a track monster or a weekend warrior, this is the blow off valve that lets your turbo breathe and your engine scream.

More boost. Less surge. All power.
Upgrade with confidence