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 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.
The main material is lightweight and durable titanium.
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.
* Advantex is a registered trademark of Owens Corning.
Shape of muffler: SSR (SUPERIOR specR)
Main material: Ti
Diameter of tip: 124x4
Diameter of center pipe: 85
Close noise level: HKS 87
• Only compatible with the vehicle made after July 2016 or later or 2017 model of Pure Edition. If installed on a vehicle made after Oct 2011, processing of the factory aluminum air guide plate is required. Not compatible with GT-R NISMO and 4BA-R35.

