This Audi A1 1.4 FSI performance exhaust is made in 2.5" / 63.5mm pipework and fits from the front pipe / catalyst backwards (Cat-back system) these exhausts replace the front box, centre and rear sections.
The non-resonated sports exhaust makes the system louder as it excludes the centre silencer and therefore, has a sportier exhaust note. This exhaust is also available as a resonated version (including centre silencer) which is a quieter option and has a subtle but sporty tone.