If your Honda Accord's check engine light is on or you're failing emissions, this direct-fit catalytic converter might be the fix. Designed specifically for 2008-2012 Honda Accord models with the 2.4L engine, this converter bolts right on with a 3 or 4-bolt flange connection—no welding needed. It's EPA and OBD II certified, so it meets federal emissions standards, but please note it's not legal for sale or use in California or New York. Made from stainless steel with a ceramic substrate, it includes both pre and post-catalyst oxygen sensor ports. Inlet size is 1.78\ x 4\, outlet is 2.95\. Comes with a solid 5-year manufacturer warranty and a 2-year warranty from the seller. Part number 16590, also fits other numbers like 40870, 57347, 325311, and 641499. Made in China but built to last. Easy to install with basic tools, and it'll get your Accord running clean and quiet again. Perfect for DIY repairs or shop use. Keep your car legal and running smoothly without breaking the bank. UPC: 6200966097821.