VRSF B58 4.5-inch Decat Downpipe – BMW M140i, M240i, 340i, 440i & 540i

VRSF B58 4.5-inch Decat Downpipe – BMW M140i, M240i, 340i, 440i & 540i is a high-flow exhaust upgrade for the listed BMW applications. Replacing the restrictive factory section reduces exhaust back pressure, supporting faster turbo response and increased flow on suitably prepared cars.

Key features

• 4.5-inch hand-crafted 304 stainless-steel downpipe
• CNC-machined stainless-steel turbo flange
• Smooth-radius bends to reduce turbulence
• Fits RHD and LHD Gen-1 B58 applications with the correct interface

BMW fitment

M140i, M240i, 340i, 440i & 540i.

Fitment check: BMW used different flange and connection arrangements across model years and engine revisions. Please confirm the engine, chassis and physical interface before ordering if there is any uncertainty.

Motorsport / off-road use only: This product removes or bypasses emissions-control equipment and is intended for motorsport or off-road use only.