The primary purpose of a purge valve is to release trapped air or gaseous nitrous from feed lines. Helps to ensure consistent performances. And it looks cool, too. You've probably seen the Import or pro mod guys do it. Includes all required components.

Product Features:

• Unique Kit Uses Bright Blue LED
• Illuminates a 4 ft. plume of Nitrous
• Strikes Fear Into Nighttime Competitors
• Install Easily w/Common Hand Tools
• Fits All Nitrous Kits w/-4 AN Feed Line