GReddy DD-R Sport Resonated Cat Back Exhaust Honda Civic Type R 2017-2021 | 10158603 Wheel Bolt Pattern_6x139.7 Flow Testing Results: We conducted

Flow Testing Results: We conducted comprehensive testing

This insures the vent still blows air like stock to keep your windows defrosted

2-Bolt (1)

Multi function lamp (F1 Brake / Parking)

GReddy DD-R Sport Resonated Cat Back Exhaust Honda Civic Type R 2017-2021 | 10158603 Wheel Bolt Pattern_6x139.7 Flow Testing Results: We conductedProduct Fitment: 2017 2021 Honda Civic Type R Upgrade your vehicles sound, style, and performance with the GReddy Performance DD R Exhaust System, a modern evolution of the legendary Dynamic Dual design. Engineered for enthusiasts who want both aggressive aesthetics and race inspired acoustics, this system features a twin high flow, low restriction compact muffler layout that maximizes exhaust flow while delivering a bold, unmistakable tone.