16 pcs Intake and Air-out Valves Set Replacement for A4 A5 Golf 2.0T

16 pcs Intake and Air-out Valves Set Replacement for A4 A5 Golf 2.0T

• The purpose of the intake valve is to suck air into the engine and mix it with fuel for combustion
• The function of the air-out valve is to discharge the burnt fuel and air mixture
• This multi valve structure is easy to form a compact combustion chamber, and the fuel injector is arranged in the center, so that the fuel air mixture can burn faster and more evenly
• The weight and opening of each valve shall be reduced appropriately to make the valve open or close faster
• In order to improve the efficiency of intake and air-out, multi valve technology is adopted now. It is common that each cylinder is arranged with four valves, and four cylinders have 16 valves in total