This system is a True Dual design that features a Merge X-Pipe and Polyphonic harmonizer technolgy. All of these features combine to provide the classic S-Type sound level and the BORLA no drone guarantee. The Merge X-Pipe blends the combustion pulses from both sides of the engine for improved performance and a custom sound. BORLA'S Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound. 4.5" polished phantom style T-304 stainless steel tips provide a custom appearance. Systems with carbon fiber tips with black anodized centers are also available. BORLA Cat-Back & Axle-Back exhaust systems feature patented straight-through and multi-core technology 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, high-quality T-304 austenitic 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. System Features: Cat-Back Exhaust System 2.5" True Dual Design S-Type Sound Level No Drone Merge X-Pipe Polyphonic Harmonizer Dual 4.5" Phantom Style Polished T-304 Stainless Steel Tips T-304 Stainless Steel Million-Mile Warranty