Wagner Tuning BMW N55 High-Flow Catted Downpipe 300 CPSI Euro 6 - M135i M235i M2 335i 435i (F20 F21 F22 F87 F30 F31 F32 F33 F34) 07/2013+ SS304 Direct-Fit | PN 500001013 | Replaces 18328602882

BMW N55 Sports Catalyst Front Section by Wagner - M135i M235i M2 335i 435i 07/2013 onward

Unlock sharper throttle response and freer turbo flow with this high-flow sports catalyst front pipe for the BMW N55 platform. Built from premium 1.4301 stainless steel (SS304) and engineered for a precise bolt-on fit, it replaces the restrictive factory catalyst on post 07/2013 M135i, M235i, M2, 335i and 435i models. A 300 cpsi Euro 6 metal substrate cat maximises exhaust gas velocity while maintaining refined operation, helping your turbocharger run cooler and more efficiently.

Why enthusiasts choose this upgrade

• 300 cells per square inch Euro 6 metal core sports cat to reduce back pressure and enhance turbo efficiency
• Durable SS304 1.4301 stainless construction for longevity and corrosion resistance
• Direct bolt-on front section with OEM-style connections for a hassle-free install
• Two oxygen sensor ports for straightforward Lambda integration
• 118 mm connection interface sized for optimal gas flow on the N55 single turbo
• Designed in CAD for accurate fit and consistent performance

We have fitted this unit on customer cars and our own N55 builds and the results are consistently excellent. Fitment is spot on, quality is top tier and owners report a noticeable improvement in response and mid-range pull. If you want a catted solution that delivers performance without the usual compromises, this is the pipe to choose.

Vehicle coverage

For N55-powered BMW models from July 2013 onward, including:

• M135i F20 F21
• M235i F22
• M2 F87
• 335i and 335i xDrive F30 F31 F34
• 435i and 435i xDrive F32 F33

Chassis codes: F20, F21, F22, F30, F31, F32, F33, F34, F87.

Part numbers

• Wagner PN: 500001013
• Cross-reference OEM: 18328602882

Installation and fitting support

Professional fitting recommended. Replace the turbo to front pipe gasket during installation for best results. For expert installation, contact MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Note: Depending on calibration, you may need software adjustments to avoid EML warnings after installation.

Compatibility check

We will verify fitment before dispatch. Add your UK registration number or the last 7 characters of your VIN at checkout and we will confirm compatibility for your specific N55 model.

Manufacturer and warranty

Brand: Wagner

Warranty: 2 years manufacturer warranty

Search terms customers use

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