HKS 3sx MUFFLER
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The digital control valve exhaust system for sound pressure and exhaust efficiency.
It’s always a challenge to acquire both quietness and high output for automobiles. To comply with turbo upgrades for R35 GT-R, we have developed a changeover valve system muffler. So depending on the exhaust flow, the flow channel can be changed to give more power and cool exhaust sound.
This graph shows each 3 stages of testing. We have analyzed the muffler’s sound pressure and exhaust balance and set the switching point of the stages. (When driving, it automatically changes)
* Stage 1 sound pressure is very like to the sound of an original muffler.
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