HKS Hi-Power Cat Back Exhaust Honda Civic Si Sedan (FC) 2017-2021 | 31006-BH002 vendor_PIAA Improved throttle response and power

Improved throttle response and power delivery

Includes all required fixing hardware

these OEM window deflectors let you crack your windows open for fresh air while helping keep rain

This oil cooler kit increases overall oil capacity by

HKS Hi-Power Cat Back Exhaust Honda Civic Si Sedan (FC) 2017-2021 | 31006-BH002 vendor_PIAA Improved throttle response and powerFitment Information: 2017 2021 Honda Civic SI Sedan Features: Improves horsepower, torque, and throttle response Increases exhaust flow and power over stock Loud and aggressive exhaust tone Material: SUS304 Stainless Steel Piping Diameter: 65mm 60mm (2. 56 2. 36 inches) Dual Tip Diameter: 97mm (3. 82 inches) Gaskets and Hardware for installation included This HKS Hi Power Exhaust comes with a 65mm large diameter pipe and full straight structure reduce