Hiflofiltro air filters are manufactured to fit the factory air box and are a direct replacement for original equipment filters.
Fits:
Kawasaki ZR1100 C2,C3,C4 (ZRX1100) 1996 to 2000,
Kawasaki ZRX1200 2001 to 2003,
Kawasaki ZRX1200 R (ZR1200 A1-A6) 2001 to 2006,
Kawasaki ZRX1200 S (ZR1200S B1-B4) 2001 to 2004