Silent Hi-Power mufflers offer high performance and sporty
appearance with the added benefit of reduced noise levels making it the best
choice for more mature enthusiasts. Silent Hi-Power mufflers are constructed
entirely of SUS304 grade stainless steel for high luster, long lasting
performance. For certain applications, HKS has introduced the "Silent
Chamber" which removes a lot of the lower frequency noise that can often
be heard into the cabin even when cruising. The silent chamber removes this
uncomfortable noise but due to its closed end design, only a minimal amount of
exhaust gas flows into it, meaning that the disruption to exhaust gas flow
through the entire system is minimized and there is no harm to performance.
Silent chamber for some vehicles.
Straight structure has a characteristic that is easy to
eliminate high frequency sound. However, it is difficult to control low
frequency uncomfortable sound that can be heard in the cabin. Silent chamber
can reduce this low sound.
In addition, because of the closed inside structure, exhaust
gas does not through inside silent chamber and exhaust gas resistance is less.
Therefore, there is no performance difference even silent chamber is equipped.
"JASMA" approved.
The material is SUS304 for improvement of appearance and
durability.
Proven "Advantex* glass wool" (Continuous fiber
glass wool).
75mm Pipework
Hollow hook and pressed flange for some vehicles to reduce
weight.
Redesigned inner structure of silencer to improve
performance and appearance.
* Advantex is a registered trademark of Owens Corning.
Section figure of TYPE-S
As shown above, taper portion of the inner pipe is set at
front so that the rear end of the inner pipe cannot be seen from the rear. With
noise elimination performance, it improves appearance. Since the diameter of
inner pipe is larger (excluding some vehicles.), performance of the exhaust
system is improved.