Borla(r) presents their Axle-Back system for the fourth generation Mazda 3 Hatchback. The 2.5" diameter into dual 2" system replaces the stock rear muffler and is a direct bolt-on part for ease of installation. Specifically tuned for the 2.5L Skyactiv engines, our S-Type Axle-Back delivers a sportier sound and a more exciting driving experience without any drone. It features 4" round black chrome on T-304 stainless steel tips that properly fill out the rear bumper cutouts. Using Borla(r) Stainless Steel Polish p# 21499 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. A system with bright chrome on T-304 staginess steel tips is also available. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. As you can expect from Borla(r) , the exhaust is constructed using T-304 stainless steel and comes with a Million-Mile Warranty. Give your Mazda 3 the sound it deserves, bolt on a Borla(r) . System Features: Axle-Back Exhaust System S-Type Sound Level T-304 Stainless Steel Construction 2.5" to dual 2" Pipe Diameter 4" Round Black Chrome On T-304 Stainless Steel Tips No-Drone Million Mile Warranty