When Audi was forced to introduce a new particulate filter to the RS3 back in 2019, most people thought the extraction of 400hp from the newly put-upon five-cylinder unit was an admirable achievement.
When Audi was forced to introduce a new particulate filter to the RS3 back in 2019, most people thought the extraction of 400hp from the newly put-upon five-cylinder unit was an admirable achievement.