MagnaFlow Sys CB 06- Honda Civic 1.8LThe MagnaFlow 2006 2011 Honda Civic Street Series Cat Back Performance Exhaust System 16687 brings out the personality of your 1. 8L, 2. 0L 2006 2011 Honda Civic with our signature resonant, powerful engine tone and dyno proven performance. Thanks to its fast flowing, mandrel bent 2. 25in. main piping and 2 Straight Through mufflers ending in a Single Straight Passenger Side Rear exit with 4in. Polished Welded On Double Wall Angle Cut Rolled Edge