HKS Exhaust Sound Clips - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Dzmitry · 10-26-2021, 01:27 PM

Quote:

Originally Posted by tenderization

Also yet another dyno chart at 2:23 or so.

That's another one showing 209-210 whp.

Stonehorsw · 11-01-2021, 05:41 PM

Grif · 11-08-2021, 05:54 PM

A good video comparing the active sound control On (5.10) and Off (6.15) with a HKS Spec L exhaust. The difference is fairly prominent, however I am not decided on which I prefer.

tenderization · 11-08-2021, 08:59 PM

Quote:

Originally Posted by Grif

A good video comparing the active sound control On (5.10) and Off (6.15) with a HKS Spec L exhaust. The difference is fairly prominent, however I am not decided on which I prefer.

Wow, the part that I guessed was ASC in the first clip was 100% gone in the second clip. Definitely prefer ASC off...
I'm not sure it was even throttle % the whole time, but it seemed like it comes on mostly after 4500rpm.

Sasquachulator · 11-08-2021, 09:38 PM

definately off, it actually sounds like an engine.

And it actually sounds a little closer to the FA20, maybe a bit smoother and not as high pitched as the fake sound.

The active sound gives it this high pitched non-matching whine that is played on top of the regular engine sound...kind of like a duet that doesnt match.

Dylans47 · 11-08-2021, 11:35 PM

How are people turning on and off the ASC? Is it a simple settings thing, or does there need to be an aftermarket device?

tenderization · 11-08-2021, 11:49 PM

Quote:

Originally Posted by Dylans47

How are people turning on and off the ASC? Is it a simple settings thing, or does there need to be an aftermarket device?

Fuse pull or someone with access to the right computer (dealer) can disable it in software it sounds like

As a last resort, a snippy snip.

diga · 07-15-2022, 02:32 AM

Does anyone know the dB specs for the HKS Hi Power Spec L for North America vs the Japanese spec (JASMA) version? I recently bought a slightly used Japanese spec - JASMA JQR 40134159. It was listed for sale as the US spec but when I got there it turned out to be the Japan spec which I believe is significantly more quiet. I ended up getting it but now having buyers remorse, it sounds great but it's too quiet, just wondering how much louder the US spec is. I like the look and really like the fact it's so light weight.

joemysterio · 07-15-2022, 02:58 PM

Quote:

Originally Posted by diga

Does anyone know the dB specs for the HKS Hi Power Spec L for North America vs the Japanese spec (JASMA) version? I recently bought a slightly used Japanese spec - JASMA JQR 40134159. It was listed for sale as the US spec but when I got there it turned out to be the Japan spec which I believe is significantly more quiet. I ended up getting it but now having buyers remorse, it sounds great but it's too quiet, just wondering how much louder the US spec is. I like the look and really like the fact it's so light weight.

It's supposed to be 89dB according to HKS but from my unofficial test I got about 98dB at about 5.5k rpm. it's in the exhaust thread.

07-15-2022, 02:32 AM	#50
diga Member Join Date: Jan 2022 Drives: 2022 Subaru BRZ Limited 6MT Location: SoCal Posts: 48 Thanks: 16 Thanked 11 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Does anyone know the dB specs for the HKS Hi Power Spec L for North America vs the Japanese spec (JASMA) version? I recently bought a slightly used Japanese spec - JASMA JQR 40134159. It was listed for sale as the US spec but when I got there it turned out to be the Japan spec which I believe is significantly more quiet. I ended up getting it but now having buyers remorse, it sounds great but it's too quiet, just wondering how much louder the US spec is. I like the look and really like the fact it's so light weight. __________________ 2022 Subaru BRZ Limited 6MT

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11-01-2021, 05:41 PM	#44
Stonehorsw Senior Member Join Date: Jul 2020 Drives: 18 Brz (Sold) / 22 BRZ Location: Michigan Posts: 651 Thanks: 1,029 Thanked 439 Times in 256 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)

11-08-2021, 05:54 PM	#45
Grif Member Join Date: Jul 2021 Drives: BRZ 2nd gen Location: Sydney Posts: 50 Thanks: 24 Thanked 40 Times in 23 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	A good video comparing the active sound control On (5.10) and Off (6.15) with a HKS Spec L exhaust. The difference is fairly prominent, however I am not decided on which I prefer.

11-08-2021, 09:38 PM	#47
Sasquachulator Pavement Grey Join Date: Dec 2011 Drives: 2020 Toyota 86 GT, 2017 BMW X1 Location: Calgary Posts: 3,092 Thanks: 109 Thanked 2,229 Times in 1,209 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	definately off, it actually sounds like an engine. And it actually sounds a little closer to the FA20, maybe a bit smoother and not as high pitched as the fake sound. The active sound gives it this high pitched non-matching whine that is played on top of the regular engine sound...kind of like a duet that doesnt match.

11-08-2021, 11:35 PM	#48
Dylans47 Senior Member Join Date: Nov 2017 Drives: Scion FR-S Location: California Posts: 176 Thanks: 49 Thanked 41 Times in 24 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	How are people turning on and off the ASC? Is it a simple settings thing, or does there need to be an aftermarket device?

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