-5%
Granatelli 540201 50mm ultra high flow blow-off valve for turbocharged vehicles
Granatelli 50mm ultra high flow BOV with 6 psi and 15 psi springs
Granatelli black anodized 50mm blow-off valve for high-boost applications
Universal Granatelli high-flow blow-off valve designed to reduce compressor surge
Click to zoom in

Granatelli 50mm Viper Series Ultra High Flow Blow Off Valve

GMS540198
802735047639
Blow Off Valves
9 Units In Stock - Ships Next Business Day
$ 288.75 $ 274.00
$ 274.00

SKU: 540201 / UPC: 802735042337


Granatelli Motor Sports 50mm Ultra High Flow Blow-Off Valve (BOV) with 6 psi & 15 psi Springs

Black Ops Auto Works is proud to offer the **Granatelli 50mm Ultra High Flow Blow-Off Valve** as a serious performance upgrade for turbocharged vehicles. This large 50mm valve with a generous 0.625" lift is engineered to quickly vent boost pressure, reduce compressor surge, and protect your turbocharger while delivering a crisp, aggressive blow-off sound. The kit includes both a 6 psi spring for daily driving and mild boost applications, and a 15 psi spring for high-boost setups, giving you the flexibility to tune the valve to your specific power level.

Why Choose Granatelli Blow-Off Valves from Black Ops Auto Works?

  • Ultra High Flow 50mm Design – Significantly larger than most factory BOVs for faster pressure release
  • Adjustable Spring Rates – Includes both 6 psi (daily/mild) and 15 psi (high-boost) springs
  • Turbo Protection – Reduces compressor surge that can damage turbochargers
  • Improved Throttle Response – Quicker boost venting leads to sharper power delivery
  • Black Anodized Finish – Durable, corrosion-resistant, and great looking under the hood

Key Features

  • 50mm Valve Size – High-flow design for serious boost applications
  • 0.625" Lift – Allows rapid venting of boost pressure
  • Dual Spring Kit Included – 6 psi for street use and 15 psi for high-performance builds
  • Black Anodized Aluminum Body – Lightweight and corrosion resistant
  • Crisp Turbo Sound – Produces a loud, distinctive blow-off noise

Specifications

Detail Value
Brand Granatelli Motor Sports
Type 50mm Ultra High Flow Blow-Off Valve
Valve Size 50mm
Lift 0.625 inches
Springs Included 6 psi (daily/mild) and 15 psi (high-boost)
Finish Black Anodized
Weight 4.0 lbs
Country of Origin United States
Warranty Granatelli Limited Warranty

Whats Included

  • Granatelli 50mm Blow-Off Valve
  • 6 psi Spring
  • 15 psi Spring
  • All Necessary Hardware and Gaskets

Product Notes

  • This is a **universal** blow-off valve designed for turbocharged applications
  • Professional installation and proper tuning are recommended
  • Choose the correct spring based on your boost levels (6 psi for mild, 15 psi for high boost)
  • May require fabrication or custom piping depending on your turbo setup

This Part Fits

Application Notes
Universal Turbocharged Vehicles Designed for custom or modified turbo setups. Professional fabrication may be required for proper installation.

Why Choose Granatelli through Black Ops Auto Works?

  • Black Ops Auto Works is your trusted authority for premium Granatelli Motor Sports products
  • Granatelli blow-off valves deliver excellent flow, sound, and turbo protection
  • Expert support and fast shipping for your build
  • Backed by Granatelli’s reputation for high-performance turbo components

Frequently Asked Questions

  • Q: Is this a complete BOV or just the valve?
  • A: This is a complete blow-off valve kit that includes the valve body, both springs, and all necessary hardware.
  • Q: Which spring should I use?
  • A: Use the 6 psi spring for daily driving and mild boost levels. Use the 15 psi spring for high-boost applications.
  • Q: Will this fit my stock turbo setup?
  • A: This is a universal high-flow BOV. It may require custom fabrication or piping depending on your turbo and intercooler setup.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock – ships same or next business day
  • Packaging: Secure Granatelli retail packaging
Read More
Read Less

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Blow Off Valves

Blow Off Valves

Explore our premium selection of Blow Off Valves, specifically designed to enhance your vehicle's performance. Whether you're a car enthusiast looking to improve your turbocharged engine or simply seeking to upgrade your vehicle's mechanics, this collection offers a variety of high-quality valves that cater to your specific needs. Why Choose Our Blow Off Valves? Our Blow Off Valves are engineered for reliability and efficiency. They provide numerous benefits including: Enhanced Turbo Performance: Reduce turbo lag and improve throttle response. Durable Construction: Made from strong materials that withstand high pressure and temperature. Easy Installation: Designed for a straightforward installation process, perfect for DIY enthusiasts. Features of Our Collection Each product in our Blow Off Valves collection guarantees: Customizable Options: Choose from various sizes and styles to fit your vehicle. Noise Control: Enjoy an impressive sound without being excessively loud. Competiti...

View Blow Off Valves Products
Forced Induction

Forced Induction

Welcome to our Forced Induction collection, where performance meets precision. Discover how forced induction can significantly enhance your vehicle's power and efficiency. Our curated selection of top-notch parts and accessories is designed to elevate your driving experience. Why Choose Our Forced Induction Products? We pride ourselves on offering an extensive range of premium components from trusted brands, including: Addictive Desert Designs AEM Agency Power BorgWarner Garrett Turbosmart   Upgrade Your Ride From turbochargers to intercoolers, our collection features everything you need for a complete forced induction system. Whether you're looking for performance upgrades or maintenance parts, we have the solutions to unleash your vehicle's full potential. Shop Now! Don't miss out on enhancing your vehicle's performance. Explore our Forced Induction collection today and experience the thrill of a turbocharged or supercharged ride!

View Forced Induction Products
Granatelli Motor Sports

Granatelli Motor Sports

Granatelli Motor Sports (GMS) is renowned for its innovative designs and engineering expertise, making it a premier name in the automotive market. With over seventy years of experience, GMS continues to push the boundaries of performance and speed. Innovative Products Some of the groundbreaking innovations from GMS include: The first aftermarket F-body torque arm. The only Gen 4 F-body calibrated 200 MPH speedometer available for the aftermarket. The first 50 state legal centrifugal supercharger system. The Novi-2000 supercharger, featuring a quiet helical gear design capable of producing over 1000 horsepower legally across all 50 states. Performance Innovations GMS is committed to offering exceptional performance products for all American Muscle cars, including: 1988-2013 Mustangs Gen 4 and Gen 5 ‘98-2013 Camaros C5 & C6 Corvettes SRT 8 Challengers, Chargers, and 300C Commitment to Quality GMS invests countless hours in: Engineering evaluations Precision testing ...

View Granatelli Motor Sports Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×