SKU: SKU: GFB-T9358
GFB expands the DV+ range with a direct-fit solution for the weakfactory diverter valve used on many European vehicles.
The solenoid coil itself from the factory-fitted valve is great- the ECUopens it faster than any pneumatic valve so why replace it? Theweak point however, is the valve mechanism itself. GFBs DV+ solvesthis problem by replacing the valve parts with an anodised billetaluminium housing, fitted with a brass piston machined to exactingtolerances.
The end result is sharper throttle response, lightning-fast valveactuation, and it will hold as much boost as you can throw at it. Readall about the DV+ story below.Other manufacturers products involve replacing the entire systemwith a traditional pneumatic valve. This approach requires longvacuum hose runs, additional parts for tapping into the intakemanifold vacuum, plus a different solenoid valve to actuate thepneumatic valve, or a ballast resistor to plug into the OE wiringloom. All these additional items result in a product that is slower,less responsive, more expensive and takes much longer to install.
GFBs DV+ solution on the other hand is more responsive, lessexpensive, easier to install, and doesnt cause compressor surge/turbo flutter. Oh, and it doesnt requiredifferent springs or frequentre-builds either.
Many late-model European cars 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;
Additionally, the solenoid on the OE diverter is directly connected tothe valve mechanism, which is not ideal because neither it nor thereturn spring are strong enough to open and close the valve reliablyat high boost.
With problems like this, you can see why other aftermarketmanufacturers assume the best solution is to replace the factorydiverter entirely, or change it to a purely pneumatic system.Unfortunately though, whilst their replacement kits might bestronger than the factory diverter, their slower response speed andlower flow do not justify the extra cost and complexity - more of acompromise than a solution.
GFB has taken a different approach to deliver a complete solutionthat solves existing problems and improves performance, withoutcompromise or a hefty price tag.
The DV+ addresses the factory valve problems with a very simpleand elegant solution. Keeping the factory solenoid, the DV+ retainsall the benefits of the stock system. Also replacing the valve partswith indestructable metal components ensures strength andreliability, no matter how much boost you run.
Thats not all; rather than using the solenoid to directly actuatethe valve, weve introduced a unique pilot-actuation system. Thismeans the solenoid only has to control airflow through a smallpassage that is then used to open and close the piston (ratherthan opening and closing the piston directly), so it doesnt matterhow much boost you push through it, the DV+ will open and closereliably without ever exceeding the solenoids capability.
This feature also improves on the factory system by opening thevalve progressively in response to boost pressure, so it only opensas much as required to get the job done (the factory valve simplyopens and shuts, it cannot partially open if boost pressure is low),resulting in better throttle response.
How the GFB DV+ Works
GFB DV + Installation (on a Mercedes)
GFB DV+ Assembly