Muffler(sus φ90x4tip)
Part no.: 4101-21611
Application: F16 X6 35i / N55B30
Discription:

Material: stainless steel（SUS304）
Main pipe: φ60.5-70mm
Tail pipe: φ90mm / 4 tip
Contents: rear silencer,
Installation: needs to cut factory exhaust . 
Control valve: available.

Approved: JQR (Meet Japanese standard)

Noise level for reference
81dB at 4350 rpm

*the diffuser in the picture is 3108-21611