Bomiz BMW G2x M340i M440i B58 Valved Catback Exhaust

The B58 in the M340i and M440i is BMW's best inline six. This is what it sounds like without the muffle.

The G2x M340i and M440i carry BMW's B58 inline six in one of its most developed forms — balanced, powerful, and tuned to disappear into the background of a refined sports sedan. The Bomiz valved catback gives you the choice to bring it forward. Electronic valve control moves between quiet daily-drive mode and a sound that reminds you this is an M Performance car, not a commuter. The B58 earns every note.

Stainless steel 304 construction, hand welded. Bomiz electronic valve controller and full wiring included.

Specifications

• Stainless Steel 304 construction
• Bomiz electronic valve system
• High quality tig welding
• HP and torque gains

What's Included

• Full catback exhaust system
• Electronic valve controller and wiring
• Necessary hardware and clamps
• Installation instructions

Fitment

• BMW G20 M340i
• BMW G22 M440i

*Competition use only

WARNING: Please note that certain aftermarket exhaust systems may not comply with applicable US (including California) laws and regulations, and may therefore be prohibited for use on highways or roads, or on roads or vehicles otherwise subject to emissions control requirements. California prohibits the use of any aftermarket exhaust system that modifies, removes or replaces original equipment catalysts, unless CARB has issued an Executive Order as to such part or system.

BOMIZ parts or exhaust systems/components used or intended for use on "racing vehicles" (i.e. a competition vehicle used exclusively for competition on closed-course circuits) do not require an exemption or Executive Order from CARB to be sold in California. However, such parts are prohibited from use on California public highways or roads, even if occasionally used "off-road."