Upgraded Billet Water/Methanol WMI tank cap with integrated safety check valve

The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out!  

Each cap is CNC machined in the USA from a solid block of billet aluminum, engraved with the BMS logo, and anodized blue or red for protection. 

⚠️ Check valve piston must be lightly lubricated if tank shows signs of vacuum. One drop of penetrating oil or motor oil in the top will keep the check valve operational. 

Features and Benefits

• Integrated heavy-duty check valve lets air in but not out
• Specifically designed to prevent evaporation
• Keeps vapors inside the tank
• Made from a solid block of billet aluminum
• Blue anodizing for corrosion protection
• Exaggerated grips for easy removal
• Integrated heavy-duty o-ring 
• Made in the USA

Tank fitment
• BMS 1 and 1.25 gallon tank
• BMS 2 gallon universal tank
• BMS 2 & 3 gallon stealth tank