The PLM Private Label Mfg. Power Driven K-Series Header Downpipe for the 9th Gen Civic FG (2012-2015) and Acura ILX (2013-2015) is engineered for maximum performance with its large 4.25-inch bell mouth design and 3-inch outlet. Designed for a direct bolt-on installation, no modifications are needed to fit the OEM exhaust cat-back location. For the best value and seamless fitment, buy the original PLM downpipe and elevate your vehicle’s performance effortlessly.