Wagner Tuning BMW N55 Catless Downpipe 07/2013+ (F20 F21 F22 F30 F31 F32 F34 F36 F87) - M135i M235i 335i 435i M2 - SS304 High-Flow Decat - Replaces OEM 18328602882 - 500001017

Wagner Race De-Cat Front Pipe for BMW N55 F-Series | Part No. 500001017

Unlock faster spool-up, stronger midrange and a harder-hitting soundtrack with Wagner’s free-flowing stainless front pipe for N55-powered F-series models. This straight-through de-cat section replaces the restrictive factory catalyst to cut turbine inlet pressure, improve throttle response and let the turbo breathe properly. We have fitted this hardware on our own builds and customer cars at MJ Modifications and the feedback is exactly what enthusiasts want: crisper boost response, more urgency through the rev range and a deeper, motorsport-style tone.

Key reasons enthusiasts choose this N55 race front section

• Free-flow design for reduced exhaust restriction and quicker turbo spool
• Precision CAD development for accurate fitment across BMW F-series N55 platforms
• Manufactured from 1.4301 stainless steel, also known as 304-grade, for durability and heat stability
• Lower turbine backpressure helps performance and thermal management
• Direct replacement for the factory front pipe for straightforward installation
• Two lambda bungs for pre and post O2 sensors in the correct locations
• Connection diameter 118 mm

Replacement for BMW OE reference: 18328602882
Wagner part number: 500001017

Compatibility

For BMW F-series models with the N55 engine from 07/2013 onward:

• BMW M2 F87 2016+
• BMW M135i and M135i xDrive F20 F21 07/2013+
• BMW M235i and M235i xDrive F22
• BMW 335i and 335i xDrive F30 F31 F34 07/2013+
• BMW 435i and 435i xDrive F32 F36 07/2013+

Ideal for Stage 2 set-ups

This de-cat front pipe is a proven hardware upgrade for tuned N55 cars. Pair it with appropriate software where permitted to maximise gains in torque and power, along with sharper transient response.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. We know N55 exhaust upgrades inside out and can supply, fit and advise on supporting software. Request a fitting quote at info@mjmodifications.co.uk.

Recommended during install: replace the turbo to front-pipe gasket and related hardware to ensure a leak-free seal.

ECU and legal notes

• Removing the catalyst may trigger an EML. Software changes are typically required to prevent warning lights.
• De-cat components are intended for off-road or track use only where local regulations allow.

Fitment confirmation

We can verify compatibility before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm fitment for your exact vehicle.

Brand and warranty

Manufacturer: Wagner
Warranty: 2 years manufacturer warranty

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