{"product_id":"apr-18-25-audi-s4-s5-b9-catback-exhaust-system","title":"APR 18-25 Audi S4\/S5 (B9) Catback Exhaust System","description":"The APR Catback Exhaust System for the Audi B9 S4 and S5 is a complete, high-performance exhaust solution that runs the entire length of the vehicle from the catalyst back. Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance, elevate sound, and enhance aesthetics with customizable exhaust tips that are sure to make a statement. Crafted from premium materials and built with advanced manufacturing techniques, this system is designed to withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with an impressive gain of 10 horsepower and 12 FT-LBS of torque to all four wheels!","brand":"APR","offers":[{"title":"Default Title","offer_id":48965506269403,"sku":"APRCBK0012","price":1827.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/8809\/8779\/files\/f80e8b2848bfde50e3dd84eb32e71bdfL.jpg?v=1783721646","url":"https:\/\/www.functionwerks.com\/products\/apr-18-25-audi-s4-s5-b9-catback-exhaust-system","provider":"FunctionWerks","version":"1.0","type":"link"}