Muffler set (sus φ90x2tip)
Part no.: 4101-75911
Application: R58, R59 / N18B16A
Discription:

Material: stainless steel（SUS304）
Main pipe: φ60.5mm
Tail pipe: φ90mm / ２ tip
Contents: rear silencer (not come with diffuser on the picture)
Installation: needs to cut factory exhaust .
Control valve: not available.

Approved: JQR (Meet Japanese standard)

Noise level for reference
(It might be different depending on the condition)
81dB at 4125 rpm