Invidia Q300 Cat-Back Exhaust | 06-11 Honda Civic Si 2 Door

Fits: 8th Gen Honda Civic Si (2-door)

The Invidia Q300 Exhaust features a flat bottom-shaped muffler design, which results in improved high-speed aerodynamic performance.

The muffler, inside, contains continuous piping design and use of Advantex material that results in an excellent free-flow exhaust with optimized back pressure, giving greater horsepower, torque gains and a rich deep sporty sound.