Including type approval; only valid for LC4 640 with Mikuni carburetor. Can only be fitted in combination with factory header. Removable noise reduction insert. 60% weight reduction compared with original stainless steel version. We recommend use of the appropriate PP filter box cover and the following main jet: Mikuni carburetor: 157.5 (58431023157); Keihin carburetor: 188 (54531623188) SXC 02, SMC 660 03-04, 640 LC4 Enduro 94-06, 640 Adventure 98-07, 640 LC4 Supermoto 94-04
