Please note: this applies only to models without an OPF. If your RS3 or TT RS has a particulate filter, this kit will not fit. In Europe, this applies in practice to models built up to and including 2018. Before ordering, check underneath the car: if there are two small secondary catalytic converters in the exhaust, it will fit. If there is a particulate filter, it will not.
The CTS performance Midpipes with catalytic converters are designed for the Audi RS3 8V and the Audi TT RS 8S fitted with the 2.5 TFSI engine. They replace the restrictive secondary catalytic converters with high-flow catalytic converters, allowing the engine to breathe more freely. They do not deliver a significant performance gain, but the exhaust note is drastically improved.
The midpipes are hand-crafted from 3-inch T304 stainless steel, featuring CNC mandrel-bent and polished tubing and flanges cut using CNC waterjet technology. The necessary fitting hardware is included.
Why only without an OPF
On a car fitted with a particulate filter, this location houses the filter along with a pressure differential sensor and a temperature sensor. These midpipes do not have connections for these, so they cannot be used on such a car. On the Audi RS3 8V and the TT RS 8S, later models were fitted with that filter, whilst the RS3 8Y has always had it.
The surest way to check is to look under the car for two small secondary catalytic converters. Due to production variations, this may differ from car to car, so please check before ordering.
Fits
- Audi RS3 8V 2.5 TFSI, models without OPF
Does not fit
- Any model with an OPF or GPF; in practice, models from 2019 onwards
- Audi RS3 8Y
Features
- Hand-crafted from 3-inch T304 stainless steel
- All necessary fitting hardware included, including gasket set
- Flanges cut using CNC waterjet technology
- CNC mandrel-bent stainless steel pipework
- 200-cell catalytic converters
- Does not trigger the engine fault light
Technical specifications
- Material: T304 stainless steel, polished
- Diameter: 3-inch pipework
- Catalytic converters: 200-cell high-flow
- Manufacturing technique: hand-made, CNC mandrel-bent, flanges CNC waterjet-cut
- Weight: 6.8 kg
Contents of the set
- CTS mid-pipes with catalytic converter, 3-inch
- Required fitting hardware
- Gasket set
- Installation instructions
Frequently asked questions
How do I know if my car has an OPF?
Look underneath the car. If there are two small secondary catalytic converters in the exhaust, this set will fit. If there is a particulate filter, it will not fit. In Europe, this generally applies to vehicles manufactured up to and including 2018.
Why don’t they fit on a car with an OPF or GPF?
On such a car, the filter – which includes a pressure differential sensor and a temperature sensor – is located in this position. These midpipes do not have connections for these sensors.
Do these midpipes cause the engine fault light to come on?
No, the midpipes do not cause the engine fault light to come on.
Do they deliver a power gain?
They do not deliver a significant performance gain, but the exhaust note is drastically improved because the restrictive secondary catalytic converters are replaced by high-flow catalytic converters.
