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Active Autowerke

N55 3.5-Inch Downpipe Exhaust Upgrade

$399.00 $379.05 Save $19.95

SKU: 11-028

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

Moderate — 2–4 hours

Description

The Active Autowerke N55 Downpipe Exhaust Upgrade is a high-flow downpipe designed for BMW F-Chassis N55 models including the M235i, 335i, 435i, and M2. It addresses the restrictive OEM component to optimize exhaust flow and enhance turbocharger performance. Constructed from 3.5-inch diameter 304 stainless steel piping with a 1.5mm wall thickness, this downpipe minimizes back pressure and maximizes turbo spool speed. It offers direct bolt-on fitment, retaining OEM mounting points for straightforward installation without cutting or welding.

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.

Available on iOS & Android

Specifications

BrandActive Autowerke
Part Number11-028
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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