Ford Focus RS Mk2 2.5T Cat-Back/Catback Exhaust System | 3in (76.2mm) After-Cat Centre & Back Box | Resonated or Non-Resonated | Direct Fit to OE Catalyst | Performance Rear Section Upgrade 2009-2011

Transform the soundtrack and look of your Focus RS Mk2 with a high-quality after-catalyst rear section system in 3 inch (76.2 mm) pipework. This upgrade replaces the mid-pipe and back box from the catalyst rearwards, delivering a deeper, more purposeful note and a cleaner, sharper aesthetic. Built to last and fully guaranteed by the manufacturer, it’s a direct-fit solution designed to elevate every drive.

Why enthusiasts choose this RS Mk2 system

• 3 inch / 76.2 mm tubing from the converter back for a freer-flowing setup and an aggressive, motorsport-inspired tone.
• Sound options to suit you: choose with a centre silencer for a subtle, road-friendly soundtrack, or a straight-through centre (non-resonated) for a louder, more characterful note.
• Direct-fit to the factory catalyst, replacing the centre and rear sections with no cutting of the OE cat required.
• All hardware included: supplied with the relevant gaskets and fittings for a tidy, professional install.
• Manufacturer guarantee for peace of mind and long-term reliability.

What you’ll experience

Expect a richer five-cylinder growl, sharper throttle character through the revs, and a finish that looks as good as it sounds. Our team has fitted this system on customer cars and in-house builds; feedback has been consistently excellent for both the fitment and the sound quality. If you want your Mk2 RS to sound like it should, this is the upgrade.

Perfect fit, clean install

Designed to sit neatly on the original hangers and join to the OE catalyst, this after-cat setup replaces the centre section and tail section for a straightforward swap. Whether you go for the silenced option or the straight-through centre, you’ll get an unmistakable RS tone without compromising on quality.

Professional fitting available

Want it installed by specialists? We offer expert fitting at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

In the box

• After-catalyst centre section (with centre silencer or straight-through centre, depending on your choice)
• Rear section/back box assembly
• Appropriate gaskets and fittings

Watch and listen

Examples below show typical sound characteristics. Some clips may include additional components; the listing here is specifically for the after-cat system.

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