Stone Exhaust Eddy Catalytic High-Flow Sports Catalyst Catted Downpipe for BMW N26 2.0T (F20 F21 F22 F23 F30 F32 F33) 125i 228i 328i 428i incl xDrive | Euro 6/MOT Friendly UK | Stainless 304 Direct-Fit Front Pipe

Stone Exhaust Eddy Catalytic High Flow Sports Cat Down Pipe for BMW N26, F20 F21 F22 F23 F30 F32 F33, 125i 228i 328i 428i, Part A205NE

Give your 2.0 turbo petrol BMW sharper response, stronger mid range pull and a richer exhaust tone with the Stone Exhaust Eddy Catalytic sports cat front pipe. Designed for the N26 engine and built to Euro 6 standards, this MOT friendly high flow catalyst keeps refinement and drivability while freeing up performance where it matters.

Key benefits

• Eddy catalytic vortex core manages gas velocity for flow and emissions control, helping the turbo spool faster and maintain back pressure where it’s needed.
• O2 sensor placement engineered for stable lambda readings to help reduce the chance of nuisance warning lights.
• Direct fit to factory hardware, no cutting, no welding, uses OEM style brackets and flanges for a clean install.
• SUS304 stainless steel throughout with precision TIG welds for strength and long term corrosion resistance.
• Developed using full 3D scan data and CFD analysis for consistent diameter, smooth radii and minimal turbulence.
• UK road friendly solution with Euro 6 compliant catalyst design for everyday use.

What you will notice

• Quicker turbo response and stronger low to mid range torque.
• Crisper throttle feel and a deeper, more purposeful sound without harsh drone.
• Smoother part throttle cruising with OEM like refinement.

Construction highlights

• High efficiency noble metal substrate catalyst for effective conversion with excellent flow.
• 7 axis CNC mandrel bends maintain roundness and consistent cross section.
• Dual cross welds and reinforced turbo flange zones for thermal durability.

Vehicle coverage, N26 petrol turbo

BMW 1 Series

• F20 125i and 125i xDrive 2010 to 2019
• F21 125i and 125i xDrive 2010 to 2019

BMW 2 Series

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

BMW 3 Series

• F30 328i 2011 on

BMW 4 Series

• F32 and F33 428i 2013 on

Part number

A205NE

Why enthusiasts choose this upgrade

Compared with typical straight through pipes and conventional sports cat designs, the Stone Eddy Catalytic layout balances gas speed and conversion efficiency. In our installs at MJ Modifications the fit is spot on, the sound is refined yet sporty, and customer feedback has been excellent for drivability and response.

Professional installation

Want it fitted properly first time We offer in house installation at MJ Modifications in Warwickshire, including fasteners, heat management and post install checks. Request a quote at info@mjmodifications.co.uk.

Manufacturer and warranty

Made by Stone Exhaust

Backed by a 2 year Stone Exhaust warranty

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