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Old 12-15-2015, 08:41 PM   #1
hosfordryan
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Berk Dual Tip Muffler Delete Drone

I just installed a Berk dual tip muffler delete on my BRZ. This is the first time I have ever messed with the exhaust on a car. I am happy with the deep sound it makes, however at around 2.3k and 4k rpm, it drones really badly.

Is there any way to fix this? I love the sound except for that drone! I bought it about a week ago and I can't get over it. I am thinking I will have to return it if I can't fix the drone.

Is there a way to get rid of the drone? If not, is it possible to return the muffler delete to Berk if it has been less that 30 days? Thanks.
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Old 12-15-2015, 09:21 PM   #2
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You still have stock resonator?
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Old 12-15-2015, 09:53 PM   #3
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Yes, I kept everything that I took off of the car. Sorry if this is a stupid question (I am a completely new to exhausts) but is the muffler and resonator the same thing? If not, where is the resonator?
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Old 12-15-2015, 10:08 PM   #4
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If all you did was replace the axle back, which is what the Berk is, then there should be very little drone. I have a Mach V dual exit delete, 2.5" overpipe and catless front pipe and I love the sound. Is it loud? Hell yes when I get on it. But I have learned where to keep the RPM's to keep it calm. Right around 3k RPM seems to be the sweet spot for me.

Also, if you JUST put it on, give it some time to get coated with some exhaust soot. That will tone it down a little too.
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Old 12-15-2015, 10:25 PM   #5
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Quote:
Originally Posted by djliquidsteele View Post
Also, if you JUST put it on, give it some time to get coated with some exhaust soot. That will tone it down a little too.
About how long do you think it would take until it quiets down a little?
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Old 12-15-2015, 10:33 PM   #6
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Well it was pretty quick for me as I am down 1 cat. Give it a couple weeks. The tips will turn black inside then you'll know. It'll get more and more coated as time goes by.

If that still doesn't fit for you, I'd a get a front pipe with a helmholtz resonator. Nameless Performance makes one. I would advised if you do this, take your car to a GOOD muffler shop and have them make a 2.5" mid pip with a silencer. I say this because I originally put my muffler delete on first and it added a kick in the pants. When I put on the overpipe and front pipe, I feel like I lost some power. After watching a very informative video on exhaust design, I think it added a vacuum pulse that wasn't there before and jacked it all up.
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Old 12-15-2015, 10:41 PM   #7
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Quote:
Originally Posted by djliquidsteele View Post
If all you did was replace the axle back, which is what the Berk is, then there should be very little drone. I have a Mach V dual exit delete, 2.5" overpipe and catless front pipe and I love the sound. Is it loud? Hell yes when I get on it. But I have learned where to keep the RPM's to keep it calm. Right around 3k RPM seems to be the sweet spot for me.

Also, if you JUST put it on, give it some time to get coated with some exhaust soot. That will tone it down a little too.
Got any science to back that up? If not, I'd reckon your ears are just getting used to it.
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Old 12-15-2015, 11:19 PM   #8
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a little

Quote:
Originally Posted by hosfordryan View Post
I just installed a Berk dual tip muffler delete on my BRZ. This is the first time I have ever messed with the exhaust on a car. I am happy with the deep sound it makes, however at around 2.3k and 4k rpm, it drones really badly.

Is there any way to fix this? I love the sound except for that drone! I bought it about a week ago and I can't get over it. I am thinking I will have to return it if I can't fix the drone.

Is there a way to get rid of the drone? If not, is it possible to return the muffler delete to Berk if it has been less that 30 days? Thanks.
I got my muffler delete about 3 weeks ago and love it the car sounds so much better and yes it get a little drone now and then but that's what happens when you delete the muffler. The biggest thing is find what rpms quite it down. I've found that above 4k its pretty quite so shift gears according. This is assuming you have the manual otherwise you will have to change where the auto trans shifted to. Just try downshifting to keep the RPMs up and the drone should go away. PS- This doesn't drone at all compared to my SRT4 which has a 3" catless from the turbo back so maybe this seems quite to me because of that
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Old 12-15-2015, 11:28 PM   #9
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I'm going to add a tally to the "don't hold whatever rpm you hear your drone at" clan. I also recently installed the Berk muffler delete, single exit flavor, and have noticed drone in certain spots.

It even drives one of my buddies so crazy he hates riding with me 😂 so I usually just change my speed for the gear I'm in, or down shift, or turn up the radio.

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Old 12-16-2015, 12:03 AM   #10
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I too have a Berk single exhaust muffler delete. I love it and have no complaints. I must admit that i don't even know what drone is so either i don't have it or i like it. Please advise.
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Old 12-16-2015, 12:08 AM   #11
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Quote:
Originally Posted by hosfordryan View Post
About how long do you think it would take until it quiets down a little?
Quote:
Originally Posted by djliquidsteele View Post
Well it was pretty quick for me as I am down 1 cat. Give it a couple weeks. The tips will turn black inside then you'll know. It'll get more and more coated as time goes by.

If that still doesn't fit for you, I'd a get a front pipe with a helmholtz resonator. Nameless Performance makes one. I would advised if you do this, take your car to a GOOD muffler shop and have them make a 2.5" mid pip with a silencer. I say this because I originally put my muffler delete on first and it added a kick in the pants. When I put on the overpipe and front pipe, I feel like I lost some power. After watching a very informative video on exhaust design, I think it added a vacuum pulse that wasn't there before and jacked it all up.
Quote:
Originally Posted by Cole View Post
Got any science to back that up? If not, I'd reckon your ears are just getting used to it.

I'm almost 100% sure it's sensory adaptation and you getting used to it, there is no muffler or muffler walls to speak of to get coated in carbon for any sort of sound difference to take place, it's literally just a pipe. If he really wants some less drone , he should take it to a shop and ask them to weld in a resonator in the pipe that runs between the two tips.

I also agree with getting the nameless front pipe with helmholtz resonator, and you might as well get the nameless mid pipe as well because then you'll essentially have a full header-back done, because the nameless front pipe replaces the overpipe as well
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Old 12-16-2015, 03:07 AM   #12
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Quote:
Originally Posted by djliquidsteele View Post
...........

Also, if you JUST put it on, give it some time to get coated with some exhaust soot. That will tone it down a little too.
I reckon that's sort of like sitting on the firing line of a M-60 machine gun range range ....... after a few hours, they aren't nearly as loud as they were to start with ...... and it ain't because some carbon has built up in the barrels .......


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Old 12-16-2015, 03:14 AM   #13
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Quote:
Originally Posted by hosfordryan View Post
I just installed a Berk dual tip muffler delete on my BRZ. This is the first time I have ever messed with the exhaust on a car. I am happy with the deep sound it makes, however at around 2.3k and 4k rpm, it drones really badly.

Is there any way to fix this? I love the sound except for that drone! I bought it about a week ago and I can't get over it. I am thinking I will have to return it if I can't fix the drone.

Is there a way to get rid of the drone? If not, is it possible to return the muffler delete to Berk if it has been less that 30 days? Thanks.
You may get some ideas here:

http://www.ft86club.com/forums/showthread.php?p=923261


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Old 12-16-2015, 03:18 AM   #14
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Originally Posted by lonborghini View Post
I too have a Berk single exhaust muffler delete. I love it and have no complaints. I must admit that i don't even know what drone is so either i don't have it or i like it. Please advise.
"Drone" is the sound that is made by your car's exhaust, when it drowns out, so you can't hear, the bitching from your wife, about you driving too fast ......


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