Yamaha YZF - R1 (15-16) Akrapovic Optional Noise Reduction Baffle Insert For Use With S-Y10SO13-HHX2C & S-Y10SO14-HHX2T - Yamaha YZF - R1 (15-16) Tacho Cables Insist on them whoever builds

Insist on them whoever builds your cylinder head

fits 7/8th

GSXR 600L4

Complete with Rings

Yamaha YZF - R1 (15-16) Akrapovic Optional Noise Reduction Baffle Insert For Use With S-Y10SO13-HHX2C & S-Y10SO14-HHX2T - Yamaha YZF - R1 (15-16) Tacho Cables Insist on them whoever buildsThe Akrapovic optional baffle insert is designed to reduce the noise level produced by the silencer. This is especially useful for track day use where stringent db noise levels must be adhered to. It is also recommended for use when the Akrapovic optional headers or de cat link pipe have been added to a slip on kit to help maintain a sensible noise level.