Muffler set (sus φ90x4tip)
Part no.:
4101-33014 (stainless)
4101-33014C (carbon)
Application: G30/G31 523i / B48B20A
Discription: -
Material: stainless steel（SUS304）
Main pipe: φ80mm
Tail pipe: φ90mm / 4 tip
Contents: rear silencer, mid pipe
Installation: needs to cut factory exhaust .
Control valve: Not available.

Approved: JQR (Meet Japanese standard)

Noise level for reference
89dB at 3750 rpm