Greddy DD-R Non-Resonated Cat Back Exhaust Honda Civic Sport / Civic Type R 2017-2021 | 10158602

Product Fitment:

2017-2021 Honda Civic Sport Hatchback

2017-2021 Honda Civic Type R

Transform the look, sound, and performance of your hatchback with the DD-R non-resonated cat-back exhaust system designed for 2017-2021 Civic Sport Hatchback. Built with race-inspired styling and aggressive acoustics, this system improves exhaust flow while delivering a deep, sporty tone that matches the car’s turbocharged character.

Engineered specifically for FK7 chassis vehicles (and compatible with FK8 applications, though louder due to the non-resonated design), this system features precision mandrel-bent stainless-steel piping and a performance-focused layout that maximizes airflow from the turbocharged L15 engine. The straight-through design eliminates the mid-pipe resonator for sharper throttle response and a more pronounced exhaust note.

Features & Specifications

• System Type: 3" cat-back exhaust with dual compact mufflers

• Construction: High-quality stainless steel

• Piping Layout:

  • 1× 76 mm (3") primary pipe

  • Splits to 2× 76 mm (3") rear pipes via precision Y-pipe

• Tip Size: Dual 101 mm (4") removable tips with logo

• Resonator: None (non-resonated design)

• Pieces: 3-piece system

• Fitment: FK7 hatchback chassis (fits FK8 but louder)

• Connection: Slight flange taper allows direct bolt-up to factory overpipe

• Gaskets Included: 2× 3" oval replacements

Performance Benefits

• Improved Exhaust Flow: Straight-through architecture reduces restriction

• Aggressive Sound: Race-inspired tone without a mid-pipe resonator

• Customizable Appearance: Removable tips allow alternate styling options

• Direct Bolt-On Fit: Designed to mate with factory piping

Ideal For

Drivers seeking a bold exhaust note, track-style aesthetics, and improved turbo efficiency without requiring fabrication or extensive modifications.