Exhaust› Exhaust Pipes, Systems and Components

Active

B58 Catted Downpipe

$1,199.00

SKU: B58CATDP

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Active Autowerke BMW G2X G4X B58 M340i M440i GESI Catted Downpipe is a performance exhaust component designed to improve exhaust gas evacuation. It features a 4.5-inch diameter stainless steel piping that reduces back-pressure, allowing for quicker turbo spool and increased horsepower. This downpipe incorporates a GESI G-Sport Ultra High Output catalytic converter that is EPA registered and OBD2 compliant.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandActive
Part NumberB58CATDP
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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