{"product_id":"cat-back-exhaust-system-2-1-2-inch","title":"Cat-Back Exhaust System 2-1\/2 Inch","description":"The Billy Boat Exhaust FPIM-0503 cat-back exhaust system is engineered to enhance the performance and sound of the 2005-2008 Audi A4 Quattro with a 2.0T manual transmission. This system replaces the restrictive factory exhaust with a fully polished, mandrel-bent T304 stainless steel tubing set, featuring a 2-1\/2 inch diameter for optimal flow.\n\nThe system incorporates hand-fabricated mufflers utilizing Billy Boat's unique Purge Resonance Technology (PRT) to produce a distinct, pleasing exhaust note that is louder than stock without causing interior resonance. For those seeking a more aggressive tone, an optional sport version replaces the center resonator with a hand-fabricated x-pipe.\n\nVisually, the exhaust is finished with twin 3.5-inch round, double-wall polished tips, adding a touch of enthusiast-oriented style. As an after-cat design, this system is 50-state emissions legal. It is backed by Billy Boat's limited lifetime warranty, ensuring long-term durability and customer satisfaction.\n\nKey benefits include guaranteed HP and TQ gains, increased fuel mileage, no interior resonance, and an incredibly deep rumble.","brand":"Billy Boat Exhaust","offers":[{"title":"Default Title","offer_id":52687100903736,"sku":"FPIM-0503","price":1231.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660186361.webp?v=1784880354","url":"https:\/\/store.motormia.co\/products\/cat-back-exhaust-system-2-1-2-inch","provider":"MOTORMIA","version":"1.0","type":"link"}