UNI NU-2391 Air Filter

The UNI NU-2391 Air Filter is designed to fit in the factory air box in the same manner as the original filter. It is a replacement air filter for competition motorcycles and ATVs, with a two-stage design that supports easy and complete cleaning.

Constructed with dual layers of foam, the UNI NU-2391 allows each layer to be serviced separately. Its thin Ultra Seal base is designed to resist tearing and includes a built-in grease groove.

The UNI NU-2391 fits 1998–2002 Kawasaki ZX900 Ninja ZX-9R models. It has also been used by factory Yamaha, Kawasaki, and Suzuki off-road teams.

Features:

• Factory air-box fit: Designed to fit in the factory air box exactly like the original filter.
• Competition replacement: Developed as a replacement air filter for competition motorcycles and ATVs.
• Two-stage design: Allows easy and complete cleaning.
• Dual-layer foam: Both foam layers can be serviced separately.
• Ultra Seal base: Thin base is virtually impossible to tear and includes a built-in grease groove.
• Fitment: Fits 1998–2002 Kawasaki ZX900 Ninja ZX-9R models.

Fitment:
1998 Kawasaki ZX900 Ninja ZX-9R
1999 Kawasaki ZX900 Ninja ZX-9R
2000 Kawasaki ZX900 Ninja ZX-9R
2001 Kawasaki ZX900 Ninja ZX-9R
2002 Kawasaki ZX900 Ninja ZX-9R