Invidia’s downpipe with cat for the 15-20 S3, and 15-19 Golf R is manufactured to enhance performance and to lessen restriction by its larger diameter and smoother bends. Invidia down-pipes make for the most popular exhaust upgrade that adds a substantial bump in both horsepower and torque. High-flow exhaust systems produce a deep rich sound experience in your car. This is a 100% bolt-on installation with no modifications or changes required. Factory O2 sensor locations are also retained to ensure compatibility with factory systems.

INVIDIA PERFORMANCE

Far more engineering goes into the design of an exhaust system than many realize. From a performance perspective, there is a fine balance between exhaust backpressure and exhaust gas velocity. Too large a diameter pipe, and low down power and torque are sacrificed (particularly on naturally aspirated cars), too small a diameter or added restrictions and bottlenecks in the system, and the engine is unable to push gasses out of the combustion chamber efficiently, reducing power and torque. There are many other technical aspects such as the "scavenging effect" which are beyond the scope of this document, but the point is, it's not as simple as just strap on a drain pipe and gains for days. A "quality" exhaust system maximizes performance gains by design.

Invidia High Performance employs a team of engineers and conduct thorough research and development for every single exhaust component they manufacture, ensuring performance to match the customer's needs in every instance, including the use of the highest quality High Flow Catalytic Converters where applicable.

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