The design of this system involved extensive research and development to give you the ultimate in sound quality and performance.

Starting from scratch, B&B set out to offer a complete high-performance cat pipe for the 2.0T as in the Audi A4. With our exclusive dynamometer, we carried out extensive dyno testing, resulting in impressive horsepower and torque gains throughout the power band. All of this system is meticulously built by hand using T304 Stainless Steel – which means we can guarantee you a lifetime of top performance!

If what you need is extra power on the track, look no further. Billy Boat has developed a cat pipe for the B7 A4 2.0T. Far superior to the restrictive factory cat, this part is directly bolted on.  Not only does it increase horsepower and torque; it also reduces turbo lag and increases spool up. You’ll love it! 

All necessary gaskets included in all kits

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