Volkswagen GTI Golf Jetta Audi A3 TT 1.8 2.0TSI CTS-IT-270R Cold Air Inlet Pipe Kit
Working Process
Outside air → Air filter → Intake pipe →
Air sensor → Throttle body → Intake manifold →
Intake valve → Engine cylinder
Core Functions
Filter dust and impurities
Control intake air volume
Distribute air evenly to each cylinder
Reduce intake noise & stabilize air pressure









