Alfa Romeo Stelvio Diverter Valve Set - 2.9L QV - Go Fast Bits / GFB - DV+
When you want no noise, no-nonsense, just performance.
Many manufacturers like Alfa are pushing their engines to the limit. Get a DV to match!
GFB’s DV+ Diverter Valve for the Alfa Romeo Stelvio 2.9L Engine offers a direct-fit performance solution for the weaker factory diverter valves used.
By retaining the factory ECU control and recirculating the vented air, the DV+ is a purely performance-oriented product that offers the following benefits:
- Sharper throttle response
- Faster boost recovery on gearshift
- Solves boost leaking issues
- Built to last
- Designed for the 2.9L Engine
- 2 valves included for Quadrifoglio models
Many late-model cars like the Stelvio use ECU controlled solenoid-type diverter valves. This is a good concept because the valve can react very quickly and it only opens when it needs to.
However, there are some problems with these valves. There are typically two types of solenoid-actuated diverter valves found standard on VAG and European cars, both of which have their shortcomings.
GFB has taken a different approach to deliver a complete solution that solves existing problems and improves performance, without compromise or a hefty price tag.
The DV+ addresses the factory valve problems with a very simple and elegant solution. Keeping the factory solenoid retains all the benefits of the stock system, and replacing the valve parts with indestructible metal components ensure strength and reliability no matter how much boost you run.
That's not all. Rather than using the solenoid to directly actuate the valve, we’ve introduced a unique “pilot-actuation” system. This means the solenoid controls the air pressure that is used to open and close the piston, so it doesn't matter how much boost you push through it, the DV+ will open and close reliably without ever exceeding the solenoid’s capability.
This feature also improves on the factory system by opening the valve progressively in response to boost pressure, so it only opens as much as required to get the job done (the factory valve simply opens and shuts, it cannot partially open if boost pressure is low), resulting in better throttle response.