Borla 22-23 Honda Civic EX/Touring 1.5L 4 CYL. AT FWD 4DR S-type ExhaustThis BORLA(r) Cat Back(tm) system was designed specifically for the Honda Civic EX. The system features BORLA(r)'s Polyphonic 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 to the BORLA(r) mufflers. The muffler then enhance this sound to the character and volume appropriate for the classic S Type sound