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Active

N55 3.5-Inch Catted Downpipe

$1,399.00 $1,139.00 Save $260.00

SKU: 11-040A

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 N55 downpipe is a high-flow, catted downpipe designed to increase horsepower and torque for BMW N55 F-Chassis models. It features a 3.5-inch piping diameter and a 4.50-inch GESI high-flow catalytic converter, constructed from TIG-welded 304 stainless steel.

Fitment

Fitment Guaranteed

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on fit.

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 Number11-040A
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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