The Borla(r) Cat-Back(tm) is the perfect addition to the tenth generation Honda Civic Si. Our Cat-Back(tm) systems for the Honda Civic Si are specifically tuned for the car's 1.5L Turbo engine and are designed for easy bolt-on installation. Our S-Type sound level delivers a sound that is much sportier than the barely audible factory exhaust. This particular system has been designed to fit the Civic Si Sedan and features dual 4.25" Intercooled Tips with a durable high-temperature ceramic black finish on T-304 stainless steel. To top it off our systems are drone-free and made with premium high-quality T-304 austenitic stainless steel to give you unmatched durability. You can count on Borla(r) to provide durability performance sound and a Million-Mile Warranty. See separate note about warranty on tip finish.