Active Sound Control in normal or sport?
Thread Starter
Pit Crew
Joined: Oct 2021
Posts: 114
Likes: 40
From: Ga
Active Sound Control in normal or sport?
I actually like how it sounds, is there any way to keep it active in anything other than Sport+?
Sport+ is great but downshifts can sometimes be a bit too aggressive if driving on regular streets..
I think I might have read there was a way to force the pipe to stay open but idk if that would activate the speaker that augments the sound or perhaps it was another vehicle and I am misremembering.
Sport+ is great but downshifts can sometimes be a bit too aggressive if driving on regular streets..
I think I might have read there was a way to force the pipe to stay open but idk if that would activate the speaker that augments the sound or perhaps it was another vehicle and I am misremembering.
Lexus Champion
Joined: Oct 2005
Posts: 10,369
Likes: 2,769
From: Calgary, AB
I think you are confusing two different things. There is the intake secondary flap, which is a vacuum driven flap that opens up at 3600 rpm (2800 rpm for the 2020+).. You can disconnect the vacuum line and it will stay open always. Keep in mind, from personal experience, while it gives you a deep growl at 1000 rpm to 3600 rpm that is not there, but you will lose low-end torque as I had it disconnected when I purchased my RCF. Once the dealership reconnected, I never went back and got a cold air intake instead, but it still activates at 3600 rpm.
The other is active sound control, which is engine induction/exhaust note being piped into the cabin via a special speaker. That is the part that activates in SPORT+ mode. I have not read how to keep it activated in all other modes, though.
The other is active sound control, which is engine induction/exhaust note being piped into the cabin via a special speaker. That is the part that activates in SPORT+ mode. I have not read how to keep it activated in all other modes, though.
Thread Starter
Pit Crew
Joined: Oct 2021
Posts: 114
Likes: 40
From: Ga
I think you are confusing two different things. There is the intake secondary flap, which is a vacuum driven flap that opens up at 3600 rpm (2800 rpm for the 2020+).. You can disconnect the vacuum line and it will stay open always. Keep in mind, from personal experience, while it gives you a deep growl at 1000 rpm to 3600 rpm that is not there, but you will lose low-end torque as I had it disconnected when I purchased my RCF. Once the dealership reconnected, I never went back and got a cold air intake instead, but it still activates at 3600 rpm.
The other is active sound control, which is engine induction/exhaust note being piped into the cabin via a special speaker. That is the part that activates in SPORT+ mode. I have not read how to keep it activated in all other modes, though.
The other is active sound control, which is engine induction/exhaust note being piped into the cabin via a special speaker. That is the part that activates in SPORT+ mode. I have not read how to keep it activated in all other modes, though.
That's a shame, certainly don't wanna loose low end power.
A Cai would be a good alternative then but I was wondering which one to go with.
The thing is, I installed multiple CAI's on my Tacoma and while they gave it a deeper growl, it became unbearably loud and drony at high rpms or WOT. This problem was the same with multiple CAIs, mainly the open cone type.
Finally I got one that kept the stock air box and simply replaced the filter and a straight tube with no resonator, and it gave it a less deep tone but no annoying droning/loudness at the top end.
Does the RC F also suffer from that issue or could it have just been the Taco?
Lexus Champion
Joined: Oct 2005
Posts: 10,369
Likes: 2,769
From: Calgary, AB
I have had my AFE Power Takeda Stage 2 cold air intake for over a year (wet version) and no complaints. It has a velocity stack so it pulls more air in at high rpm and has a metallic growl above 3600 rpm. No, there is no torque loss at all since the two-stage airbox is still there so below 3600 rpm, it is quiet like stock. However, once the rpm goes over 3600 rpm and the baffle opens up, it has a more growling sound under load. It is similar to stock. Just about 10% louder. I paid $500 for it so it is was worth the money and the installation was easy as I did it in my garage. There some noticeable gains in the midrange and maybe 4 -5 whp gain at the top rpm. The exhaust system gives around +18 whp and more exhaust note, but that is a separate topic.
This video is pretty good. I used this video and I was able to uninstall OEM intake and install the new one just by looking at this
This video is pretty good. I used this video and I was able to uninstall OEM intake and install the new one just by looking at this
Yes that sounds exactly like what I was reading then!
That's a shame, certainly don't wanna loose low end power.
A Cai would be a good alternative then but I was wondering which one to go with.
The thing is, I installed multiple CAI's on my Tacoma and while they gave it a deeper growl, it became unbearably loud and drony at high rpms or WOT. This problem was the same with multiple CAIs, mainly the open cone type.
Finally I got one that kept the stock air box and simply replaced the filter and a straight tube with no resonator, and it gave it a less deep tone but no annoying droning/loudness at the top end.
Does the RC F also suffer from that issue or could it have just been the Taco?
That's a shame, certainly don't wanna loose low end power.
A Cai would be a good alternative then but I was wondering which one to go with.
The thing is, I installed multiple CAI's on my Tacoma and while they gave it a deeper growl, it became unbearably loud and drony at high rpms or WOT. This problem was the same with multiple CAIs, mainly the open cone type.
Finally I got one that kept the stock air box and simply replaced the filter and a straight tube with no resonator, and it gave it a less deep tone but no annoying droning/loudness at the top end.
Does the RC F also suffer from that issue or could it have just been the Taco?
Last edited by 05RollaXRS; Oct 29, 2021 at 08:25 AM.
Intermediate
Joined: Sep 2021
Posts: 319
Likes: 73
From: CA
I'm not sure that my 2021 actually has ASC. There's no switch for it not that I'd necessarily turn it on or off. I do wish it had active noise control like my lincoln. The car is noisier inside than I like (similar to my 2010 Venza)--its mostly tire noise. My 2019 Lincoln (with active noise reduction) and my 2008 Lexus ES350 are much quieter. They put active noise reduction on an LC500, seems it could have been added to the RC F.
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Lexus Champion
Joined: Oct 2005
Posts: 10,369
Likes: 2,769
From: Calgary, AB
I'm not sure that my 2021 actually has ASC. There's no switch for it not that I'd necessarily turn it on or off. I do wish it had active noise control like my lincoln. The car is noisier inside than I like (similar to my 2010 Venza)--its mostly tire noise. My 2019 Lincoln (with active noise reduction) and my 2008 Lexus ES350 are much quieter. They put active noise reduction on an LC500, seems it could have been added to the RC F.
The tires are high performance track tires (max performance) so they are noisy than your average street tires because of the size and compound. It is the charm of those quirks of owning a high performance car. You cannot compare it to those cars unless you are looking for a quiet cruiser which the RCF is not
Last edited by 05RollaXRS; Oct 29, 2021 at 12:58 PM.
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Intermediate
Joined: Sep 2021
Posts: 319
Likes: 73
From: CA
Yah, I knew going in that it wasn't going to be about a quiet ride. When we were shopping I had my eye on an LC but wife like the RC more since the LC was a bit lower to the ground which made it harder to get in and out. I did try M S+ and TVD in slalom and it was a fun ride but I'm not used to paddle shifting and kept trying to find a clutch with my left foot 
Lexus Champion
Joined: Oct 2005
Posts: 10,369
Likes: 2,769
From: Calgary, AB
Yah, I knew going in that it wasn't going to be about a quiet ride. When we were shopping I had my eye on an LC but wife like the RC more since the LC was a bit lower to the ground which made it harder to get in and out. I did try M S+ and TVD in slalom and it was a fun ride but I'm not used to paddle shifting and kept trying to find a clutch with my left foot
Last edited by 05RollaXRS; Oct 29, 2021 at 05:02 PM.
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