Milltek Audi Secondary Catalyst Delete Pipe for RS3 8V and 8S TTRS
Unlock the iconic 5-cylinder soundtrack and improve exhaust flow with the Milltek Secondary Catalyst Delete Pipe. Engineered in the UK by Milltek Sport, a brand with over 32 years of exhaust design and motorsport experience, this bolt-on upgrade delivers a deeper, louder and more purposeful tone while reducing restriction in the mid-section. Ideal for anyone searching for an Audi RS3 secondary cat delete, RS3 secondary decat, TTRS secondary cat delete, Audi 2.5 TFSI decat pipe or Milltek SSXAU588.
Why choose this Milltek secondary cat delete
- Transforms sound with a more aggressive, motorsport-inspired exhaust note.
- Designed to reduce back pressure for freer-flowing exhaust performance.
- Direct fit to both OE and Milltek Sport cat-back systems for easy installation.
- Large 3.00 inch 76.20 mm pipework optimises flow through the mid-pipe section.
- UK engineered and developed by Milltek for quality, durability and precise fitment.
We have fitted this Milltek secondary decat pipe for customers and the feedback on sound quality, fit and finish has been excellent. If you are searching for an RS3 exhaust upgrade, TTRS exhaust upgrade, RS3 8V secondary decat, TTRS 8S decat, Audi RS3 mid pipe, Audi TTRS mid pipe or Milltek cat delete for the 2.5 TFSI, this is the go-to solution.
Fitment and compatibility
- Audi RS3 Sportback 8V MQB Pre-facelift 2015 to 2017
- Audi RS3 Saloon Sedan 400 PS 8V MQB Non-OPF GPF 2017 to 2018
- Audi RS3 Sportback 400 PS 8V MQB Facelift Non-OPF GPF 2017 to 2018
- Audi TT Mk3 TTRS 8S 2.5 TFSI Quattro 2016 onwards
Fits both OE and Milltek Sport cat-back systems. Not required when using a full turbo-back system. Not all vehicles are equipped with secondary catalytic converters, so a visual check is recommended before ordering. This product is intended for non-OPF GPF models as listed.
Key spec
- Pipe diameter: 3.00 inch 76.20 mm
- Milltek Sport part number: SSXAU588
Compatibility check
We run a fitment check prior to dispatch to ensure you receive the correct part. Provide your UK registration number or the last 7 digits of your VIN at checkout.
Professional fitting
For installation, we recommend booking with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Important notes
- For off-road and track use where regulations allow.
- Please perform a visual inspection to confirm your car has secondary catalysts before purchase.
Brand
Manufactured by Milltek Sport.
Common search terms: Milltek RS3 secondary cat delete, Milltek TTRS secondary decat, Audi RS3 8V decat pipe, Audi TTRS 8S decat pipe, RS3 mid pipe, TTRS mid pipe, Audi 2.5 TFSI exhaust upgrade, Milltek SSXAU588, RS3 non-OPF exhaust, TTRS non-OPF exhaust, RS3 secondary catalyst removal, Audi cat delete pipe.