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The ARM E-Series N55 Downpipe is designed to increase power and performance of your N55 equipped BMW by optimizing exhaust flow and reducing back pressure. An N55 downpipe upgrade is the first hardware upgrade every N55 owner should invest in for more power!
In addition to helping your N55 make more power and torque, the ARM N55 Downpipe significantly improves the exhaust sound.
The V-Band flange is welded directly to a flex section to alleviate stress from the N55's turbo during aggressive driving. This allows for seamless integration with OEM and aftermarket midpipes that fit the OEM N55 downpipe. The ARM N55 Downpipe features two O2 sensor bungs to allow for reinstallation of the OEM oxygen sensors.
The ARM E-Series N55 Downpipe is designed to fit the vehicles listed on the chart below with an N55 engine
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | E82 | 135i | N55 3.0L |
| BMW | E81 | 135i Convertible | N55 3.0L |
| BMW | E90 | 335i | N55 3.0L |
| BMW | E90 | 335i xDrive | N55 3.0L |
| BMW | E92 | 335i | N55 3.0L |
| BWM | E92 | 335i xDrive | N55 3.0L |
| BMW | E93 | 335i | N55 3.0L |
| BMW | E93 | 335i xDrive | N55 3.0L |
Backed by the ARM Motorsports Lifetime Warranty against defects in craftsmanship or fitment. See the full warranty terms for details.
Off-road use only: This product is intended for racing vehicles and may be illegal for use on public roads in many states or provinces.