The A3 is one of Audi's most popular models in Australia, and a cat-back exhaust is the typical upgrade path to give the car a sportier note without affecting emissions compliance. The 8P, 8V and 8Y generations use different pipe routing and mounting, so confirm your exact generation and engine before ordering, and check separately if you're working on the higher-output S3 rather than the standard A3. Browse the wider Audi range for other models.

Does exhaust fitment differ between A3 generations?

Yes, the 8P, 8V and 8Y generations use different pipe routing and mounting, so confirm your exact generation and engine before ordering.

Will an A3 exhaust upgrade fit the S3 as well?

S3 models generally need turbo-specific parts due to the higher-output engine, so check the listing is rated for S3 rather than the standard A3.

Does a cat-back exhaust affect the A3's fuel economy?

The effect is typically minimal on a well-matched system, with most owners upgrading primarily for sound and marginal flow gains rather than economy.

Is the catalytic converter retained on an A3 cat-back system?

Yes, a cat-back system by definition starts after the catalytic converter, so emissions compliance is maintained regardless of which system you choose.