silent Hi-Power

Code No. 31019-AT004





Cert. No. 03S00547
Vehicle SUPRA
Model GA70
Engine 1G-GTE
Model Year 86/02 - 93/05
Shape of muffler HP (TYPE-H)
(silent Hi-Power)
Main material S304
Diameter of tip 120
Diameter of center pipe 85 (*1)
Close noise level Stock 82
HKS 83
About road clearance(*2) Clearance 110mm
Portion of the kit Center pipe
Remarks Data with low down suspension.
Product Weight


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.