Active Autowerke GESI Catted Downpipe - G20/G22 B58 (2024 and older)

The downpipe is the first section of exhaust after the turbo. Active Autowerke's version for the G20 and G22 B58 uses stainless steel piping and a high-flow GESI catalytic converter, so it opens up flow while keeping a cat in place. Active Autowerke says it will not set a check engine light.

What you get

• Stainless steel downpipe for 2024 and older M340i and M440i models.
• High-flow GESI catalytic converter built in.
• Turbo flange gasket included, fitted into the downpipe flange at the factory.
• Warranty of 5 years or 50,000 miles on the shell and tube ends, and 2 years or 25,000 miles on the catalyst core.

Good to know

• A tune is required with this downpipe.
• Active Autowerke states fitment for US-model cars only.

Brand: Active Autowerke · Part #: 11-062

For off-road / competition use only. Not legal for use on public roads in the United States, including California.

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.