This 10an fitting was designed specifically to increase crankcase pressure venting capabilities, and press right into the PCV port on your Evo 7-9 valve cover! The 4g63 motor has been known to generate high levels of crankcase pressure, and there's no better way to vent that pressure than with this monster 10an fitting! 

• -6061 T6 Aluminum
• -Press Fit
• -Black anodized finish
• -No cutting, drilling, or welding required for install!