The BORLA Team has an awesome sounding exhaust for your Sonata. Our 2.25" diameter Cat-Backâ„¢ system is specifically tuned for the Hyundai 1.6L engine. The S-Type system delivers a sound that is much sportier than stock yet far from obnoxious and is drone-free. System includes a flow plate to eliminate check engine light that may be caused by the increase of airflow of the BORLA system. The muffler features BORLA's Polyphonic Exhaust Harmonizer technology which 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. The system features dual 3.5" round bright chrome on T-304 stainless steel tips. A system with black chrome on T-304 stainless steel tips is also available. BORLA Cat-Backâ„¢ & 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. Each BORLA Exhaust System is built from premium T-304 austenitic stainless steel to give you the absolute best in performance and durability. Best of all BORLA stands behind every system with a Million-Mile Warranty. Just what youâ€d expect from the worldâ€s most experienced (and most winning) exhaust brand. Bolt-on a BORLA and get the sound to match your Hyundai's Performance.