silent Hi-Power

Code No. 31019-AZ001







Cert. No. 03S00581
Vehicle RX-7
Model FC3S
Engine 13BT
Model Year 85/09 - 91/11
Shape of muffler HP (TYPE-H)
(silent Hi-Power)
Main material S304
Diameter of tip 120
Diameter of center pipe 75 (*1)
Close noise level Stock 85
HKS 99
About road clearance(*2) Clearance 105mm
Portion of the kit Center pipe
Remarks Data with height adjustable suspension kit.
Product Weight

Single leftside outlet layout.


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.