HKS Hi-Power Cat Back Exhaust Subaru Impreza WRX STI 2015+

Shape of muffler_x000D_
_x000D_
HP(Titan) (Hi-Power)_x000D_
_x000D_
Main material_x000D_
_x000D_
S304(*2)_x000D_
_x000D_
Diameter of tip_x000D_
_x000D_
97 L&R_x000D_
_x000D_
Diameter of center pipe_x000D_
_x000D_
74.7-60.5 x 2(*3)_x000D_
_x000D_
Close noise level_x000D_
_x000D_
Stock_x000D_
_x000D_
HKS_x000D_
_x000D_
90_x000D_
_x000D_
About road clearance(*4)_x000D_
_x000D_
Clearance_x000D_
_x000D_
Portion of the kit_x000D_
_x000D_
Remarks_x000D_
_x000D_
About silencer shell type of Silent Hi-Power_x000D_
_x000D_
TYPE-S/Oval silencer for noise reduction._x000D_
TYPE-H/Round silencer for performance._x000D_
_x000D_
Main material in the component figure._x000D_
_x000D_
：_x000D_
_x000D_
SUS304/High quality stainless steel._x000D_
_x000D_
：_x000D_
_x000D_
SUH409/Stainless steel commonly used for stock exhaust._x000D_
_x000D_
About center pipe_x000D_
_x000D_
Diameter of center pipe is the portion that has the largest diameter. (Excluding silencer and tip.) It is the condition with stock suspension._x000D_
_x000D_
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._x000D_
_x000D_
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. _x000D_
_x000D_
Caution: Hook, bracket, stay may be changed without prior notice._x000D_
_x000D_
★ Exhaust noise level at idle._x000D_
_x000D_
exhaust/muffler/hipower/img/title.gif" border="0" alt="ãƒã‚¤ãƒ‘ワー" width="240" height="60">_x000D_
_x000D_
Read More_x000D_
_x000D_
HKS Hi-Power Muffler came back with the same concept, "High Power & High performance" and "Resonant Sound" and "Stylish" are harmonized together._x000D_
_x000D_
High performance for stock to high performance vehicles with upgraded turbines and sound quality me the JASMA standard are implemented together. This had been impossible in a long exhaust tuning history._x000D_
_x000D_
To maintain the exhaust efficiency, enlargement of the exhaust pipe is usually required; the sound level tends to be increase and low-tone. The exhaust system with a cannon ball-shaped shell usually has lower silencer capacity than an oval-shaped shell; therefore, to reduce the sound level, the pipe diameter is narrowed. However, a narrow pipe diameter also reduces the exhaust efficiency and increase the exhaust pressure._x000D_
HKS utilized original unique technology to maintain the exhaust capacity and sound level to meet the JASMA standard which is more severe than the regular safety standard. Inner structure of the silencer was redesigned so the unwanted low exhausts resonance was eliminated, and the sound quality was improved._x000D_
_x000D_
exhaust/muffler/hipower/img/hp_img_02.jpg" border="0" alt="" width="260" height="210">_x000D_
_x000D_
Titanium Color Exhaust Tip_x000D_
_x000D_
Brightly shined titanium color tips are used for GT-R and Silvia._x000D_
This tip is made of stainless (SUS304) which improve appearance and cost-performance._x000D_
_x000D_
exhaust/muffler/hipower/img/hp_graph.gif" border="0" alt="" width="300" height="250">_x000D_
_x000D_
* Data is based on the test results of a prototype for RB26._x000D_
_x000D_
Exhaust Dress-up Evolution & _x000D_
Safety regulations applicable._x000D_
_x000D_
Powerful rear view with the cannon ball-shaped & modern titanium color tips improve the appearance._x000D_
Tuning cars race in circuits for a time attack have improved the appearance more stylish._x000D_
To maintain large exhaust capacity, the pipe diameter of the exhaust pipe installed on the bottom of a vehicle must be enlarged, and the ground clearance must be narrow. HKS Hi-Power Muffler was designed to maintain sufficient ground clearance with redesigned flanges and layout.