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Stone Exhaust

Stone Valvetronic Valved Cat-Back Exhaust for BMW 2 Series 228i N26 2.0T (F22/F23) Coupe/Convertible & x

Stone Valvetronic Valved Cat-Back Exhaust for BMW 2 Series 228i N26 2.0T (F22/F23) Coupe/Convertible & x

£2,427.84
£3,034.80 £2,427.84
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Tailpipe Finish

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Switchable Valve Catback for BMW 228i N26 F22 F23 and xDrive

Give your turbocharged 2.0 BMW real character with a valve-controlled rear system that blends refined cruising with a proper motorsport bark on demand. This Stone Exhaust setup transforms the soundtrack and sharpens response while keeping everyday comfort intact. It is a direct bolt-on for F22 228i Coupe, F23 228i Convertible and xDrive variants with the N26 engine.

Part number: AP508NSN26

What makes it stand out

  • Valve-controlled sound: quiet when you need it, aggressive when you want it
  • OBD plug-in controller with remote handset for Open, Closed and Auto modes
  • Factory-style mounting points for a true bolt-on installation
  • 7 axis mandrel bending for superb roundness and gas velocity
  • Precision jig build, direct spot welds and overlap joints for long-term durability
  • Engineered to keep cabin resonance low while delivering a deeper, cleaner tone
  • Dyno-developed routing to promote smooth flow and crisp throttle response
  • Single-piece main section to minimise leaks and maximise reliability

Valve control made simple

The supplied controller plugs into the OBDII port for a clean, reversible install. Choose:

  • Open for a stronger, more aggressive note
  • Closed for refined, neighbour-friendly drive-bys
  • Auto to trigger the valves at a user-defined RPM

The result is a genuine dual-character system that suits commuting, long trips and weekend blasts.

Built with OE-level accuracy

Stone scans the factory system and reverse engineers every bend and flange to ensure perfect alignment with hangers, brackets and clamps. The attention to flow, heat control and structural integrity means consistent performance and a soundtrack that feels premium rather than boomy.

3D scanned, reverse engineered fit for BMW 228i N26 F22 F23

Fitment

For BMW 2 Series models with the N26 engine:

  • F22 228i 2012+ and 228i xDrive 2013+
  • F23 228i 2014+ and 228i xDrive 2014+

Real-world feedback

We have installed and used this system at MJ Modifications and it delivers exactly what enthusiasts want: a quality build, a genuine OEM-plus fit and finish, and a switchable soundtrack that customers consistently praise for being punchy with the valves open and civil with them shut.

Valved remote controller for BMW 228i N26 catback

What you will notice

  • Richer, deeper tone with the valves open
  • Hushed, comfortable volume with the valves closed
  • Smoother flow and sharper response from the turbo four
  • Daily-driver friendly refinement with weekend-ready excitement

Installation

Designed to mount to factory points with the supplied hardware. For professional fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Warranty

Stone Exhaust 2 year warranty.

Video

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