Muffler set (sus φ90x4tip)
Part no.:
4101-32912（stainless）
4101-32912C（carbon）
Application: G29 Z4 M40i B58B30C
Discription:

Material: stainless steel（SUS304）
Main pipe: φ70x2
Tail pipe: φ90mm / 4 tip
Contents: rear silencer
Installation: Replacing the factory exhaust with this product.
Control valve: Available.

Approved: JQR (Meet Japanese standard)

Noise level for reference
(It might be different depending on the condition)

96dB at 3750 rpm