These Audi S3 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.
The resonated exhaust includes the centre silencer and has a subtle but sporty tone. This exhaust is also available as a non-resonated version (excluding the centre silencer) which is a louder option, as it excludes the centre silencer and therefore, has a sportier exhaust note.