Granatelli
Granatelli 50mm Adjustable Turbo Blow-Off Valve with V-Band – 540200
Granatelli 50mm Adjustable Turbo Blow-Off Valve with V-Band – 540200
Part number: 540200
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Granatelli 50mm Adjustable Turbo Blow-Off Valve with V-Band. Key specs: valve size 50 mm and valve lift 0.340". Replacement parts keep a factory turbo system working; upgrades raise its limits. Part number: 540200.
Key features
- The Granatelli 540200 50mm Blow-Off Valve provides fast boost-pressure relief for street, street/strip and custom turbocharger systems
- 6 / 15 PSI
- Application-focused Granatelli Motor Sports design
- Built for dependable performance and service
- Designed for enthusiasts, professional installers, and performance builds
Specifications
- Brand: Granatelli
- Part type: Turbo part
- Part number: 540200
- Valve Size: 50 mm
- Valve Lift: 0.340"
- Construction: Billet Aluminum
- Springs Included: 6 PSI & 15 PSI
- Included Hardware: V-Band & Weld Flange
- Discharge: Vents to atmosphere (atmospheric)
Fitment
This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.
What it does
Boost changes need fuel and tuning to match, or the engine can run lean. Air and fuel parts decide how well the engine breathes and how cleanly it runs, so the right part restores smooth running and can support more power on a modified engine.
Installation & tips
- Change fuel and tuning together with boost, and check for leaks with a boost leak tester.
- Tuning: Most boost changes need a tune.
- Couplers and clamps: Old couplers split under boost.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
What is the part number of this turbo part?
540200 (Granatelli). Compare it with the number on your old part or in your parts catalog.
What is the turbo part made of?
The listing gives the material as billet Aluminum.
What size is it?
Valve Size: 50 mm.
Before you order
- Compare part number 540200 with your original part.

Granatelli turbo part: what to know
Boost changes need fuel and tuning to match, or the engine can run lean.
Fitment notes
- Specs, lead time and warranty come from Granatelli and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Tuning. Most boost changes need a tune.
- Couplers and clamps. Old couplers split under boost.
More for your car: Fuel & air intake · Fuel & air intake
Questions about turbo part
Will this fit my car?
Do I need a tune?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.