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GFB’s DV+ solution couldn’t be simpler - keep what works and replace what doesn’t.
Worldwide Patent and Design Patent Pending
GFB expands the DV+ range with a direct-fit solution for the weak factory diverter valve used on many European vehicles.
The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it?), but the weak point however is the valve mechanism itself. So GFB’s DV+ solves this problem by replacing just the valve parts with an anodised billet aluminium housing fitted with a brass piston machined to exacting tolerances.
The end result is sharper throttle response, lightning-fast valve actuation, and it will hold as much boost as you can throw at it. Read all about the DV+ story on the next page.
Other manufacturers’ products involve replacing the entire system with a traditional pneumatic valve, requiring long vacuum hose runs, additional parts for tapping into the intake manifold vacuum, plus either a different solenoid valve to actuate the pneumatic valve or a ballast resistor to plug into the OE wiring loom. All these additional items result in a product that is slower, less responsive, more expensive and takes much longer to install.
GFB’s DV+ solution on the other hand is more responsive, less expensive, easier to install, and doesn’t cause compressor surge/turbo flutter. Oh, and it doesn’t require different springs or frequent re-builds.
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. There are typically two types of solenoid-actuated diverter valves found standard on VAG and European cars, both of which have their shortcomings.
Common OE Problem #1
The diaphragm types are commonly known to rupture, especially when boost and temperature are increased as a result of chip tuning.
Common OE Problem #2
The plastic piston-type leaks far more than most people realise (by design, not from wear), and doesn’t always close after a high-boost gear shift.
Additionally, in both cases, the solenoid on the OE diverter is directly connected to the valve mechanism, which is not ideal because neither it nor the return spring are strong enough to open and close the valve reliably at high boost.
With problems like this, you can see why other aftermarket manufacturers assume the best solution is to replace the factory diverter entirely. Unfortunately though, whilst their replacement kits might be stronger than the factory diverter, their slower response speed and lower flow do not justify the extra cost and complexity - more of a compromise than a solution.
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 indestructable metal components ensures 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.
Bespoke. A word that perfectly encapsulates the mindset of Eventuri. Performance parts with an obsessive attention to detail and an unyielding dedication to quality. Perfectly designed to maximize the potential of each individual vehicle and meticulously refined through rigorous testing. Eventuri offers a product that stands in a class of its own and delivers outstanding power increases without making false claims or exaggerating dyno numbers. With patented designs such as a custom velocity stack filter housing and improved ducting that guides the flow of air into the engine, to the breathtaking uniformity of the weave pattern. These are performance products for the truly discerning customer.
When it comes to styling a vehicle the proper look is one that compliments, not cheapens the inherent design. Race inspired carbon fiber completes the look and style of every BMW M-powered model and Eventuri delivers on an entirely new level. Instead of simply offering black carbon and yellow kevlar that has become the norm, Eventuri has stepped things up by offering their carbon/kevlar accessories in multiple colors. Now you can choose between Blue, Red, Orange and Yellow weave to further set your ride apart from the pack.
Performance Increase : 12-15hp, 14-18ft-lb
The B58 Eventuri intake system is another example of a “Complete System” principal. It demonstrates the perfect balance between allowing for unrestricted airflow with our open filter housing whilst maintaining low IAT by cold air saturation with our scoop and shield combination. Every detail has been meticulously developed from the prepreg carbon pieces to the double layer heat shields. This intake sets a new benchmark in design and craftsmanship for the B58 platform.
The B58 Eventuri system uses a Patent Pending Carbon fiber Housing which provides an aerodynamically efficient airflow path from the filter to the turbo. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect and maintains laminar flow conditions to reduce the drag on the turbo.
The filter housing comprises of a high flow filter, aluminium cowl, laser cut bracket, carbon heat shroud and the carbon pod itself, which extends to incorporate the MAF sensor and turbo tube. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the integrated MAF intake tube. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack. The carbon filter housing and the inlet tube have been integrated to be one continuous piece. This reduces the number of internal interfaces and allows for smoother airflow to the turbo. The diameter of the tube smoothly transitions from the required diameter at the MAF sensor end to the larger diameter of the turbo inlet.
A lot of attention was placed on the heat shielding since the intake is located next to the exhaust manifold. For this Eventuri used a double layer main shield with a silver finish on the exhaust side and black on the intake side. The silver layer reflects radiant heat from the exhaust and the black layer absorbs and radiant heat on the inlet side. The air gap between the two layers acts as an insulator to stop the conductive heat spreading to the inner layer.
Each intake system includes:
This kit fits the following BMWs:
2014+ F22 M240i
Bespoke. A word that perfectly encapsulates the mindset of Eventuri. Performance parts with an obsessive attention to detail and an unyielding dedication to quality. Perfectly designed to maximize the potential of each individual vehicle and meticulously refined through rigorous testing. Eventuri offers a product that stands in a class of its own and delivers outstanding power increases without making false claims or exaggerating dyno numbers. With patented designs such as a custom velocity stack filter housing and improved ducting that guides the flow of air into the engine, to the breathtaking uniformity of the weave pattern. These are performance products for the truly discerning customer.
When it comes to styling a vehicle the proper look is one that compliments, not cheapens the inherent design. Race inspired carbon fiber completes the look and style of every BMW M-powered model and Eventuri delivers on an entirely new level. Instead of simply offering black carbon and yellow kevlar that has become the norm, Eventuri has stepped things up by offering their carbon/kevlar accessories in multiple colors. Now you can choose between Blue, Red, Orange and Yellow weave to further set your ride apart from the pack.
The N55 intake system is a perfect example of Eventuri's “Complete System” principal. It demonstrates the perfect balance between allowing for unrestricted airflow with an open filter housing and cold air saturation with proprietary scoop and duct combination. Every detail has been meticulously developed from the prepreg carbon pieces to the precision bracket work. This intake sets a new benchmark in design and craftsmanship for the N55 platform.
The Eventuri system uses a Patent Pending Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the MAF tube. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect.
The filter housing comprises of a high flow filter, aluminium cowl, laser cut bracket and the carbon pod itself. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the intake tube. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack.
Each intake system includes: