This 2.5" diameter into dual 2" BORLA® Axle-Back system was developed specifically for the Mazda CX-5. Our Axle-Back system replaces the factory rear muffler and is a direct bolt-on product for ease of installation. The system has been tuned for the CX-5’s 2.5L engine to provide the mellow Touring sound with no drone inside the vehicle. The system features single 4" round bright chrome on T-304 stainless steel tips on each muffler assembly. 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: Axle-Back Exhaust System, Touring Sound Level, T-304 Stainless Steel Construction, 2.5" to dual 2" Pipe Diameter, 4" Round Polished T-304 Stainless Steel Tips, No-Drone, Bolt-On Installation, Million Mile Warranty.