Borla 17-19 A4 Quattro Avant/Allroad 2.0L i4 AT/MT Awd 4DR S-Type Catback

3" diameter system. This system features the aggressive ATAK® sound and exits through 4" bright chrome on T-304 stainless steel tips. Systems with black chrome on T-304 stainless steel tips and brushed T-304 stainless steel tips are also available. BORLA® Cat-Back™ and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.