Suzuyabot
Member
- Thread starter
- #1
Had the HKS exhaust installed last December, took it for over 2k miles. The both sound modes are perfect for people who want an exhaust for different purposes, or sometimes when I have different moods in my car(although it's not as convenient as those valves).
As I turned off the ASE and with the caps on(silent mode), the car is quiet as f. The only noise I hear is the road(the shitty road in Portland OR area). And it's huge difference in the cabin compared to the aggressive mode.
The sound from outside does not differ very much, you do hear the difference after releasing your throttle, the difference is more on the air going through the exhaust. The tubes you place another tube or cap on is more like a resonator, I assume.
But for the sound overall, it's great. The bass of the sound coming out is stronger and not that loud to make it unbearable, but still gives a very high quality texture of the sound, I love that point of these Japanese companies that they don't just make the sound LOUD. Same as the drone, from what I hear from the driver seat without windows open, the sound is OK. And I love the feeling that I hear how many rpm my engine is when I accelerate. So the aggressive mode is already perfect, and the silent mode is even more comfortable, even making you feel you are driving a Sentra.
This is the cold start during winter with aggressive mode.
This is just slightly revs right after the installation.
And there is a problem caused by the exhaust installation, I haven't resolve this problem and still trying to find out the reason. So you should expect to have an rpm area where the drone is coming out very strong. Mine is around 1300-1500 rpm. This drone is emphasized in aggressive mode and it's unbearable when it's cold starting or it's climbing up a hill. It's not just noise but you can feel your head is shaking and pressure attacking your ears(more like the whole car is vibrating). Although it's much much better in silent mode. But here comes the main part: There is metal sound during that drone. I don't know which part is causing this sound but it always come with the drone, and it sounds like coming from the rear back area(you can hear from the video, it's something vibrating). Brought my car back to the shop and they said they didn't find any touch point on the exhaust. So yea just to share this and see if there is any answer that might help me, because without this only problem, this is the perfect exhaust for me.
BTW, I was planning to record some sound with a proper microphone since the iphone's mic does not really showing the quality(although it's always the best to hear the sound by person). So if I do I will just update them here.
As I turned off the ASE and with the caps on(silent mode), the car is quiet as f. The only noise I hear is the road(the shitty road in Portland OR area). And it's huge difference in the cabin compared to the aggressive mode.
The sound from outside does not differ very much, you do hear the difference after releasing your throttle, the difference is more on the air going through the exhaust. The tubes you place another tube or cap on is more like a resonator, I assume.
But for the sound overall, it's great. The bass of the sound coming out is stronger and not that loud to make it unbearable, but still gives a very high quality texture of the sound, I love that point of these Japanese companies that they don't just make the sound LOUD. Same as the drone, from what I hear from the driver seat without windows open, the sound is OK. And I love the feeling that I hear how many rpm my engine is when I accelerate. So the aggressive mode is already perfect, and the silent mode is even more comfortable, even making you feel you are driving a Sentra.
This is the cold start during winter with aggressive mode.
This is just slightly revs right after the installation.
And there is a problem caused by the exhaust installation, I haven't resolve this problem and still trying to find out the reason. So you should expect to have an rpm area where the drone is coming out very strong. Mine is around 1300-1500 rpm. This drone is emphasized in aggressive mode and it's unbearable when it's cold starting or it's climbing up a hill. It's not just noise but you can feel your head is shaking and pressure attacking your ears(more like the whole car is vibrating). Although it's much much better in silent mode. But here comes the main part: There is metal sound during that drone. I don't know which part is causing this sound but it always come with the drone, and it sounds like coming from the rear back area(you can hear from the video, it's something vibrating). Brought my car back to the shop and they said they didn't find any touch point on the exhaust. So yea just to share this and see if there is any answer that might help me, because without this only problem, this is the perfect exhaust for me.
BTW, I was planning to record some sound with a proper microphone since the iphone's mic does not really showing the quality(although it's always the best to hear the sound by person). So if I do I will just update them here.
