Secondly, the additional heat generated by the increased boost will quickly deteriorate the OEM rubber valve diaphragm, which will also lose strength with repeated oscillations. The Forge valve uses full billet aluminum construction and Viton silicone o-rings that will withstand the highest boost levels and repeated abuse. It is also tunable for varying boost levels with the included spring tuning kit. If there is ever a problem with the valve such as a torn o-ring, replacements are available free of charge, and the valve is fully rebuildable.Because the Genesis Coupe 2.0T does not use a MAF (mass air flow) sensor, there is no reason that the residual boost pressure at throttle lift cannot be vented to the atmosphere such as with this valve. The engine management does not meter the air volume entering the engine, so this residual pressure can be discharged without any adverse affects on the performance or driveability of the vehicle. Additionally, the valve being open at an idle or vacuum condition is a normal occurance, and is not indicative of a leaking valve. If the intake manifold is in vacuum, even while cruising at speed, the valve may be open.
The OEM valve operates in this same manner, however, it is just not visible/audible because it is recirculating instead of vented to the atmosphere. Using a stiffer spring to keep the valve closed at a vacuum condition may result in too stiff of a spring tension to effectively discharge pressure at a throttle lift condition. Fitment: Hyundai Genesis Coupe and 2011 onwards Sonata Turbo Kia Sportage and Optima. All of our products are 100% brand new unless otherwise stated in the description above. Please inspect your order upon receipt.The item "Forge Motorsport Blowoff Valve BOV Valve Hyundai for Genesis Coupe Dump" is in sale since Tuesday, June 6, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Other Parts". The seller is "importblowoutsales" and is located in Sanford, Maine. This item can be shipped worldwide.