Part Number: 31030-AF001

Description: HKS Hi-Power SPEC-R Exhaust

Fitment: 04-07 Subaru STI

Details:

Note: For applied model E, F. Fits to "SPEC-C".
Tip Diameter (mm): 120
Pipe Size: 75

Sound, layout, exhaust performance, detailed finish of manufacturing. It is a real sport muffler.

Hi-Power Spec R mufflers are designed for no compromises whilst still maintaining a reasonable noise level for street use. In the pursuit of absolute efficiency, a one piece design was utilized and titanium was chosen as the preferred material due to it its incredible lightweight properties and durability against the weathering and long term use. 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.

- Each part is reviewed to lighten its weight. It achieves 65% lighter than stock exhaust system.
- There is no gap at flange portions because of the one piece design. The straight structure prevents resistance against exhaust gas flow and increases horsepower.
- 2 layer design of tip prevents burning of bumper and has premium looking as street use model.
- "JASMA" approved.