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Cat Back Exhaust (Resonated)

Part number: AU63

Audi S1 Performance Exhaust


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Duologi Finance - Cobra Sport Exhausts

Cobra Sport exhausts systems come with a lifetime warranty for the original purchaser, giving you ultimate peace of mind.

All Cobra Sport exhausts are manufactured in the UK from certified grade 304 stainless steel and TIG welded for a superior quality finish.

EML lights may activate after removing the standard O/E catalyst. An ECU Re-map is recommended to correct this problem and stabilise all power increases.

The product images shown are for illustration purposes only and due to product enhancement may not be an exact representation of the product.

For any questions, queries or simply for our advice on these products call us on + 44 (0)114 244 7123.

Product Description


Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

These Audi S1 performance exhausts are made in 3"/76.2mm pipework and fit from the catalytic converter section backwards (Cat-back) these exhausts replace the centre and rear sections.

This resonated exhaust includes the centre silencer and has a subtle but sporty tone. This exhaust however, is also available as a non-resonated version (excluding the centre silencer) which is a louder option.

All relevant fittings and gaskets are supplied.

Related Media Files

Example of Audi S1 sports exhaust (Cat-back - Resonated).

Example of Audi S1 sports exhaust (Cat-back - Non-Resonated).

Example of Audi S1 performance exhaust (Cat-back - Non-Resonated with sports cat front pipe).

British Touring Car Championship & UK VAG Events - Cobra Sport Brand Video.

Developed on the Track, Released for the Road - Motorsport Proven Exhaust Technology.


It rocks with a crazy sound!Review by Jesper
Thanks for a great product. Recently fitted your non resonated exhaust system on my 2017 Audi S1. It rocks with a crazy sound!

Running a custom remap with a slight boost adjustment and currently getting around 325hp with addition of an aftermarket sports cat & Intercooler. (Posted on 21/11/2016)

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