2 SERIES G42

Catback exhaust for the BMW 2 Series G42 M240i

For M240i owners, the Valvetronic catback exhaust comes in two materials: stainless steel and titanium. A catback replaces everything from behind the catalyst back to the tips. Both systems are for the B58 engine, so they also fit the B58-engined 3 Series G20 and 4 Series G22. The parts are imported from leading manufacturers around the world.

Titanium or stainless steel catback?

Both are Valvetronic systems and fit the same cars; the main difference is the material. Titanium is lighter than stainless steel and comes in gold, blue, purple or original titanium color. The stainless steel system has no color option. On both, you choose the tips in matte carbon fiber, gloss carbon fiber, gloss black or stainless steel.

How do you use the Valvetronic system?

BYC's Valvetronic catbacks come with their own electronic control box and wireless remote. You open and close the valves with that remote, not with the car's button: with the valves open the exhaust gets louder, with them closed it quiets down. For example, you can keep them closed when you leave home early in the morning and open them outside the city.

Fitment notes

• The catbacks are only for the B58-engined G42. On the G42 that engine is in the M240i; there is no exhaust here for the other versions.
• The M2 G87 has its own chassis code and the S58 engine, so G42 exhausts do not fit it. M2 G87 parts are in the M2 G87 category.
• The magnetic carbon fiber paddle shifters offered for F and G Series BMWs also work on the G42.

Frequently asked questions

Does it fit the 2 Series Gran Coupé?

The 2 Series Gran Coupé does not use the G42 chassis code; the first generation is the F44 and the new one the F74. These exhausts are listed for the G42 Coupé, so they do not fit the Gran Coupé.

Will I need a software update after fitting the exhaust?

That depends on your car and your other modifications. Ask on WhatsApp about software before you order.

How is the exhaust shipped?

Exhaust systems ship via partner couriers. Lead time for sourced-to-order parts is confirmed on WhatsApp right after your order. Like every other part, the exhausts carry a 24-month BYC warranty against manufacturing defects.