Muffler Set (susφ90x4tip)..Export version
Part no.: 4101-28712
Application: F87 M2 N55B30
Discription: set of 4101-28711+4102-28711

Material: stainless steel（SUS304）
Main pipe: φ80mm
Tail pipe: φ90mm / 4 tip
Contents: rear silencer, mid pipe
(not come with the diffuser on the picture)
Installation: Does not need to cut the factory exhaust .
Control valve: available.

Approved: N/A

Noise level for reference
(It might be different depending on the condition)
104dB at 4000 rpm