Forge Blow Off Valve for Hyundai Genesis Sonata and Kia Sportage and Optima
The Forge Blow Off Valve is a direct replacement for the OEM valve in Hyundai Genesis Sonata, Kia Sportage, and Kia Optima vehicles. Designed for durability and performance, this valve is ideal for those looking to raise their boost levels and enhance their vehicle’s performance.
Unlike the stock valve, which is only suitable for stock boost levels and may become inadequate over time, the Forge Blow Off Valve is built to withstand higher boost pressures. The OEM valve’s spring cannot be adjusted for higher boost levels, and the rubber valve diaphragm deteriorates quickly with increased heat and repeated use.
The Forge Blow Off Valve features full billet aluminum construction and Viton silicone o-rings, making it capable of handling the highest boost levels and repeated abuse. It is also tunable for varying boost levels with the included spring tuning kit. In the event of any issues, replacements for torn o-rings are available free of charge, and the valve is fully rebuildable.
As the Genesis Coupe 2.0T does not use a MAF sensor, residual boost pressure at throttle lift can be safely vented to the atmosphere with this valve. This does not affect the vehicle’s performance or driveability. The valve may be open at idle or vacuum conditions, which is normal and not indicative of a leaking valve. The OEM valve operates in the same manner, but recirculates instead of venting to the atmosphere.
The Forge Blow Off Valve comes with the following components:
- 1 x FMDVHGA Valve
- 1 x Uprated Yellow Spring
- 1 x Uprated Blue Spring
- 3 x M6 x 16 Socket Cap Bolts
- 3 x M6 Plain Washers
- 3 x M6 Spring Washers
- 1 x Forge Sticker
If you want to customize this product to suit your engine’s needs, a spring tuning kit is available separately.
Fitting of this part is available at our performance workshop at Progressive Parts. Enhance your vehicle’s performance with the Forge Blow Off Valve for Hyundai Genesis Sonata and Kia Sportage and Optima.

