MZ 50mm Universal Mushroom Head Style Air Filter for Car, MZ 5cm(Red), HKS 5cm (Black), MZ 5cm(Blue)

Features
1. 100% high quality and brand new
2. Easy to install, no tnstruction
3. Filter is reusable, simple wash, dry, and re-oil
4. Designed to increase horsepower and acceleration
5. High air flow with excellent filtration
6. Mouth outer diameter: 20mm, mouth inner diameter: 12mm
7. Please measure your carburetors mouth outer diameter before you buy