Exhaust Catback System 4.00" Round Rolled Muffler Tip For 12-15 Honda Civic Si FB6 2.4L Sedan ONLY Vehicle_Mercedes-Benz SL63 AMG deliver performance gains in mid-range

deliver performance gains in mid-range without re-tuning the ECU

4 horsepower and 13

Bend Radius: 4"

rather than the screw and track design of standard clamps

3 horsepower and 6

Exhaust Catback System 4.00" Round Rolled Muffler Tip For 12-15 Honda Civic Si FB6 2.4L Sedan ONLY Vehicle_Mercedes-Benz SL63 AMG deliver performance gains in mid-rangeUpgrading vehicle exhaust system is a great way to build horsepower, free up trapped torque, and improve upon restrictive factory systems. The larger pipes, low restriction mufflers, and tuned resonators of a well designed performance exhaust system can make a world of difference on your vehicle. The net result is lower auto exhaust backpressure, more horsepower, more torque, and a much better sound.