LEGAMAX Premium CIVIC Explanation of the product Application chart

Code No. 31021-BH002

Full Straight Structure & Low Exhaust Pressure!
Full straight structure with no restriction and pipe layout for efficient exhaust gas flow inside the silencer achieves a 50% reduction in the exhaust pressure compared to the stock exhaust system.

Exhaust Sound Tuning Eliminated Unpleasant Exhaust Resonance
Enjoy the sporty exhaust sound and a comfortable ride.

Cert. No.

Vehicle CIVIC
Model FK7
Engine L15B
Model Year 16/** - 
Shape of muffler Ti (Dual)
(LEGAMAX Premium)
Main material S304
Diameter of tip 97
Diameter of center pipe 60 (50)(*1)
Close noise level Stock 80
HKS 87
About road clearance(*2) Clearance 165mm
Portion of the kit Mid Pipe Silencer
Remarks -5 mm from stock
Product Weight 28 Kg


Only for US model


About HKS muffler

*1: About center pipe
Diameter of center pipe is the portion that has the largest diameter. (Excluding silencer and tip.) It is the condition with stock suspension.

*2: Minimum road clearance between HKS muffler (Any parts included in the kit) and road surface. Therefore, it may be different from actual road clearance of the vehicle.
The data is basically the condition with stock suspension. However, please understand that some items have data with low down spring or ride height adjustable suspension kit.

Caution: Hook, bracket, stay may be changed without prior notice.

★ Exhaust noise level at idle.