ABT
ABT’s 493bhp Audi RS3-R
The 2.5-liter turbo-5cyl is upgraded by ABT to produce 493 horsepower and 443 lb ft of torque.
ABT will boost the power of your Audi RS3 to over 450bhp
There aren't many people who would consider the current 394bhp Audi RS3 to be lacking in the power department.