Milltek Sport Exhaust Secondary Catalyst Bypass Pipes for Audi TT RS Mk2 8J & RS3 8P Sportback S Tronic 2.5 TFSI 63.5mm (SSXAU226)

Milltek Sport Exhaust Secondary Catalyst Bypass Pipes for Audi TT RS Mk2 8J & RS3 8P Sportback S Tronic 2.5 TFSI 63.5mm (SSXAU226)

£233.64
£233.64
£259.60
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Milltek Secondary Catalyst Bypass for Audi TT RS Mk2 8J and Audi RS3 8P Sportback S Tronic

Unlock the signature 5‑cylinder soundtrack and improve exhaust flow with the Milltek Secondary Catalyst Bypass. Designed for the Audi TT RS 8J 2.5 TFSI and Audi RS3 8P Sportback S Tronic, this Milltek Sport upgrade replaces the factory secondary catalytic converters with high‑flow bypass sections for a sharper, louder, more characterful exhaust note and a more responsive feel. A direct fit to the OEM system, it is a popular exhaust modification for enthusiasts seeking a deeper tone, enhanced turbo whistle and crackles, and an overall performance exhaust experience on the 2.5 TFSI platform.

At Nforcd we have fitted this part for customers and feedback has been consistently positive on sound quality, fitment and overall refinement. If you want your Audi TT RS or RS3 to sound the way it should, this is a go‑to Milltek exhaust upgrade.

Why choose this Milltek Secondary Cat Bypass

  • Purpose‑built for Audi RS3 8P Sportback S Tronic and Audi TT RS 8J 2.5 TFSI
  • Replaces factory secondary catalytic converters for increased flow and a more aggressive exhaust note
  • Direct bolt‑on fit to the OEM exhaust system for straightforward installation
  • Refines the iconic 5‑cylinder sound with more volume and character
  • Ideal base for further tuning and performance exhaust upgrades
  • Pipe diameter: 2.50 in 63.50 mm

Key details

  • Manufacturer: Milltek Sport
  • Product type: Secondary Catalyst Bypass pipes secondary decat secondary cat delete
  • Part number: SSXAU226
  • Compatibility: fits with OEM exhaust system

Vehicle compatibility

  • Audi TT Mk2 8J 2006‑2014 TT RS Coupé 2.5‑Litre TFSI Quattro
  • Audi TT Mk2 8J 2006‑2014 TT RS Roadster 2.5‑Litre TFSI Quattro
  • Audi RS3 8P 2011‑2012 Sportback S Tronic 2.5‑Litre TFSI

Fitting and installation

Professional fitting recommended. Nforcd offers installation at our Warwickshire workshop. To request a fitting quote or to check diary availability, email Sales@nforcd.com.

Compatibility check before dispatch

We verify fitment prior to shipping. Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility for your Audi TT RS 8J or RS3 8P.

Search and SEO keywords

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Notes

Check local regulations regarding emission system modifications before installation. For road use, responsibility lies with the vehicle owner to ensure compliance with applicable laws.