Bring out the best of your 15+ A3 Quattro, S3 with an exhaust system that is engineered to add more HP, torque, and aggressive sound. The Billy Boat 3" downpipe with Cat is a direct bolt-on part quality exhaust system, built using lightweight and heavy-duty T304 stainless steel that comes with a lifetime guarantee of superior performance.

They pride themselves on making top-tier motorsports and street pipes, which were the results of testing in-house dynamometer and dyno testing. The results from rigorously testing and tuning were impressive HP and torque gains.

Get yours installed now and experience a solid exhaust system.

 Specs:

• 3" Downpipe W/ High Flow Cat
• Flex Joint in Downpipe
• TIG welded fully stainless construction
• CNC hangers 
• All necessary gaskets included in all kits
• Reducer included: Allows the customer to connect their factory downpipe or catback to the B&B part.

Emissions Disclaimer

• This product is sold for off-road use only.
• By purchasing this product, you understand this product is sold for competition use and is not legal for use in highway or street vehicles.
• The appropriate downpipe software is needed for this part or it will throw a CEL