HKS Hi-Power Cat Back Exhaust Honda Civic SI Coupe 2017-2021 | 31006-BH001 vendor_Gimmick Motorsports This is a diaphragm service

This is a diaphragm service replacement for the following products:

This larger volume of airflow reduces pumping loss and creates an unrestricted air path to feed the MAF housing with ambient temperature air

Mounting brackets include provisions for aftermarket horns

Water-resistant so that the solution could be taken to the problem even if it rains or snows

start performance

HKS Hi-Power Cat Back Exhaust Honda Civic SI Coupe 2017-2021 | 31006-BH001 vendor_Gimmick Motorsports This is a diaphragm serviceFitment Information: 2017 2021 Honda Civic SI Coupe 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: 60mm (2. 36 inches) Dual Tip Diameter: 97mm (3. 82 inches) Gaskets and Hardware for installation included The stock, rhombus wide tip exhaust is pretty unique but not very powerful. Swtich it out for the HKS Hi