GDB HKS HiPower Spec-R Exhaust (Titanium Tip)


Sound, layout, exhaust performance, detailed finish of manufacturing. It is a real sport muffler. Hi-Power Spec R mufflers are on average 65% lighter than the manufacturer’s standard muffler system and the single piece design reduces the inefficiencies that can be found at joints whilst allowing for the straightest possible design.

SKU: 46_3 Categories: ,


GDB HKS HiPower Spec-R Exhaust

For extreme horsepower applications, the HKS Racing Muffler system, constructed of 102mm diameter stainless steel piping, a 170mm Titanium muffler assembly and a 115mm tip, is the lightest system and the highest flowing exhaust system HKS has to offer.

Code No. 31025-AF002







Cert. No.03S06002
Model Year04/06 – 07/06
Shape of mufflerDti (Hi-Power SPEC-R)
Main materialTi
Diameter of tip120
Diameter of center pipe75 (*1)
Close noise levelStock84
About road clearance(*2)Clearance140mm
Portion of the kitCenter resonator
Product Weight

For applied model E, F. Fits to “SPEC-C”.



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 the 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, the stay may be changed without prior notice.

★ Exhaust noise level at idle.

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HKS has been conducting various businesses. Design, development, and manufacturer of automobile parts including original exhaust systems and suspension, turbocharger, electronic parts, and related parts are mainstream.
Development of race engine and ultralight plane engine are also highly regarded. Furthermore, by utilizing the technology accumulated through development of the gasoline engine parts, modification of a diesel engine to convert to a natural gas engine and development of the Bi-fuel system development have carried out. HKS continues to challenge new business from now on.


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