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

The GrimmSpeed Lightweight Crank Pulley features a lightweight and durable design for improved performance and engine response

Promotes engine bay heat extraction for improved efficiency

Lateral links have been designed to help add more strength and rigidity to your sway bar to really optimize the purpose of your sway bar

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.