Demand the Best. Demand Capristo. Capristo Exhaust Systems are engineered and manufactured exclusively at our factory in Sundern, Germany, utilizing advanced 3D laser-scanning, CAD design, digital prototyping, and CNC-bending/milling. Technical Highlights: 100% Made in Sundern, Germany Highest Grade T309 (1.4828) Stainless Steel Manually TIG Welded by Capristo Craftsmen Hand Polished to a Mirror Finish Post-Weld Requires Capristo Muffler or Modification to OEM for Installation Fits Audi RS4 (B8) and RS5 (B8) IMPORTANT: Recommended For Off-Road and Track Use Only