The high-flow downpipe with front link pipe is constructed using high-quality stainless steel and once fitted to Golf R / Audi S3 equipped with either standard or Akrapovi? performance exhaust system, it further enhances the performance figures: both the torque and power outputs. It incorporates a catalytic converter (200 cpsi) which is ECE-compliant. This optional downpipe produces an enhanced sound that delivers a pure racing emotion and fantastic feedback at high revs, without unwanted drone, making it suitable for everyday use.Fittment notice: This system does not fit on vehicles equipped with Otto particulate filter (OPF).THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.