Muffler Set (susφ90x4tip)..Export version
Part no.: 4101-28212
Application: F80/82 M3/4 N55B30
Discription: set of 4101-28211+4102-28211

Material: stainless steel（SUS304）
Main pipe: φ70mm
Tail pipe: φ90mm / 4 tip
Contents: rear silencer, mid pipe
(not come with the diffuser on the picture)
Installation: not needs 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 5000 rpm

Performance data
Gain power 12.5PS / torque 2.2kgm at crank

Model:F82M4 2015Y/M
Motor:S5530A equipped Booster chip
Compared the 3DDesign exhaust set and factory exhaust.