BMW M235i F23 Convertible/Cabriolet Front Downpipe | Cobra Sport 3" Turbo Outlet Pipe | Sports Cat, Decat (Catless) | N55 2 Series Performance Exhaust Upgrade

Unlock response and sound on your BMW 2 Series M235i Convertible F23 with this Cobra Sport turbo outlet pipe upgrade. This high-flow section replaces the restrictive factory catalyst between the turbocharger and the centre section, delivering freer breathing, quicker spool and a deeper, more engaging tone without drone.

Available in two options to suit your build and usage:

• High-flow catted version for enhanced flow while retaining a catalyst
• Catless version for maximum gas speed and the most aggressive soundtrack

Why enthusiasts choose this upgrade

• 3 inch / 76.2 mm pipework from turbine outlet to mid-section for reduced backpressure
• Direct-fit design that connects from the turbo housing to the centre exhaust section
• Transformed character with sharper throttle response and a richer, sportier exhaust note
• Fully guaranteed by Cobra Sport for peace of mind
• All required hardware included with gaskets and fittings supplied

Our team at MJ Modifications has fitted this upgrade to multiple M235i cabrios and the feedback has been consistently positive. Owners love the stronger mid‑range pull and the purposeful soundtrack that still suits daily driving with the catted option.

Fitment

Designed specifically for the BMW M235i F23 convertible. Replaces the stock catalytic section from turbo to centre exhaust.

Legal and usage notes

• Catless version is intended for motorsport and off‑road use only.
• Sports catalyst version substitutes an emissions control device and is not EC homologated. Road legality varies by region. Check local regulations before use.

Installation

Professional fitting recommended. Book your install with MJ Modifications in Warwickshire. For a quotation, email info@mjmodifications.co.uk.

Search terms customers use

BMW M235i F23 convertible turbo outlet pipe, catted downpipe, decat pipe, high flow catalyst, 3 inch 76mm down pipe, turbo to mid-pipe section, M235i cabrio exhaust upgrade, 2 Series performance exhaust part, BMW N55 M235i cabrio tuning hardware, UK performance parts supplier.

Watch and listen

Example of BMW M235i with the sports catalyst version: