Audi S3 8V Sportback 5dr switchable valve stainless system for 2013 to 2018 models

Transform your S3 with a premium turbo-to-tip upgrade that delivers serious tone, precision build quality and day-to-day refinement. This full stainless system is built from 76.2 mm pipework with beautifully neat TIG welds and integrates with Audi Drive Select, so you can cruise quietly or enjoy a sharper, more aggressive soundtrack at the touch of a button. It is designed for the 5 door hatchback Sportback 8V chassis and is ideal for pre-GPF cars.

Why S3 owners choose this system

• Switchable valves retain factory control via Drive Select for Comfort to Dynamic sound changes with zero fuss.
• 3 inch T304 stainless pipework for optimum flow from the turbo outlet for improved response and future remap headroom.
• Choice of centre silencer options: resonated for refined cruising or non resonated for a louder, more motorsport character.
• Tailpipe upgrades in 90 mm: highly polished, ceramic black or carbon fibre for a perfect rear-end finish.
• Enhanced S tronic upshift character with valves open and no unwanted cabin drone.
• Direct fit for 8V Sportback 5 door 2.0 TFSI quattro models from 2013 to 2018 that are non GPF and non OPF.

Configuration options

• Cat back section available as resonated or non resonated depending on how vocal you want the car to be.
• Front pipe options: high flow sports cat or decat to create a complete turbo-back package. With a quality ECU calibration, significant performance gains are achievable.
• Valved architecture keeps the OEM flap control for stealth or sport at will.

Construction and sound

Precision built from T304 aircraft grade stainless with continuous TIG welding for strength and a perfect fit. The 3 inch bore reduces back pressure and pairs brilliantly with stage 1 or stage 2 tuning on the 2.0 TFSI. With valves open, expect a harder edged note that really wakes up the S3 without the headache on the motorway. Independent testing shows a noticeable increase in volume with the non resonated cat back in Dynamic mode, while still maintaining refinement when you switch back to Comfort.

Fitment and compatibility

• Audi S3 8V Sportback 5 door only.
• Model years 2013, 2014, 2015, 2016, 2017, 2018.
• Pre-GPF only. Not suitable for OPF or GPF equipped vehicles.

All required hangers, fittings and gaskets are included except the turbo clamp.

Note: Images may show a resonated cat back for illustration.

Installation

We highly recommend professional fitting for the best results. Book installation with MJ Modifications in Warwickshire. For a fitting quote or to schedule your slot, email info@mjmodifications.co.uk.

Real-world results

We have installed this setup on our own cars and many customer S3s. Feedback is consistently excellent on build quality, fit and the addictive, valve-controlled soundtrack. It is the perfect balance of weekend fun and weekday civility.

Important information

De cat front pipe is for motorsport and off road use only worldwide.

Sports catalyst replaces a factory emissions device and is not EC homologated. This may not meet current emissions laws for road use in your territory.

Tailpipe choices

• 90 mm inverted polished tips
• 90 mm ceramic-coated black tips
• 90 mm carbon fibre tips

Media

Audi S3 8V Valved Cat Back Showcase

Audi S3 8V Valved Non Resonated Cat Back

Interior Sound Example

Audi S3 8V 5 Door Resonated Cat Back

Interior Sound Example 5 Door

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