Hiflofiltro air filters are manufactured to fit the factory air box and are a direct replacement for original equipment filters.
Fits:
Yamaha YZF600 R-H,HC Thundercat (4TV/4WD) 1996,
Yamaha YZF600 R-J,JC,K,KC,L,LC,M,MC Thundercat (4TV/4WD) 1997 to 2000,
Yamaha YZF600 R-N,NC,P,PC.R.RC Thundercat (4TV/4WD) 2001 to 2003,
Yamaha YZF600 R-S,SC,T,TC,V,VC,W,WC (USA) — USA 2004 to 2007