LEGAMAX Premium IMPREZA Explanation of the product Application chart

Code No. 31021-AF013

Cert. No. JQR10091077

Model GRB
Engine EJ20(TURBO)
Model Year 07/10 - 14/08
Shape of muffler RM (Titan)
(LEGAMAX Premium)
Main material S304(*2)
Diameter of tip 90 x 2 L&R
Diameter of center pipe 65(*3)
Close noise level Stock L80 R80
HKS L84 R85
About road clearance(*4) Clearance 230mm
Portion of the kit Main silencer
Product Weight


Only main shell. Fit to stock option STI exhaust finisher. Compatible with "Spec C" "R205".


About HKS muffler

*1: About silencer shell type of Silent Hi-Power
TYPE-S/Oval silencer for noise reduction.
TYPE-H/Round silencer for performance.

*2: Main material in the component figure.

: SUS304/High quality stainless steel.
: SUH409/Stainless steel commonly used for stock exhaust.

*3: 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.

*4: 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.