i post picture for any1 who try help me 
Cayman 981 drone problem
Instructor
Joined: Nov 2015
Posts: 198
Likes: 13
From: Toronto, Canada
Which exhaust system is that? I can't make out the writing on the left muffler.
For the record, drone in that RPM range is not unusual in aftermarket exhausts. Some companies do a good job of managing it, but others get 'exhausting' real quick.
For the record, drone in that RPM range is not unusual in aftermarket exhausts. Some companies do a good job of managing it, but others get 'exhausting' real quick.
Track Day
Joined: Jun 2017
Posts: 16
Likes: 0
And sometimes you don't even realize how bad the drone is until after the drive.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
Racer
Joined: Dec 2011
Posts: 394
Likes: 194
From: Denver
+1
Drone is a fact of life in aftermarket exhaust. More or less depending on the brand. Those companies are achieving (claimed) power gains and providing the sound you think you want by eliminating chambering and noise dampening. The solution is to have your OEM exhaust put back on.
Drone is a fact of life in aftermarket exhaust. More or less depending on the brand. Those companies are achieving (claimed) power gains and providing the sound you think you want by eliminating chambering and noise dampening. The solution is to have your OEM exhaust put back on.
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Three Wheelin'
Joined: Jan 2008
Posts: 1,687
Likes: 86
From: NYC
I have a 987.2 CS that I recently fitted fabspeed race headers and supercup exhaust.
First I did just the race headers and kept the stock exhaust. Nice increased growl and engine revved freer. No drone.
Then I put on the Supercups. The thing snarls and screams like a banshee at high rpm. The drone at 2K to 3K rpm is ridiculous. The car is not drivable on the street like this.
First I did just the race headers and kept the stock exhaust. Nice increased growl and engine revved freer. No drone.
Then I put on the Supercups. The thing snarls and screams like a banshee at high rpm. The drone at 2K to 3K rpm is ridiculous. The car is not drivable on the street like this.
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Joined: Mar 2016
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From: SoCal
And sometimes you don't even realize how bad the drone is until after the drive.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
OP - it's not so much as you having a drone problem, it's that your aftermarket exhaust wasn't designed to eliminate it. No option other than going back to stock.
Racer
Joined: Dec 2011
Posts: 394
Likes: 194
From: Denver
And sometimes you don't even realize how bad the drone is until after the drive.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
Put a Borla on an S4 I once owned. It sounded great in the higher rpms, but droned around 2k. I tolerated it while driving.
But after the 15-minute highway commute to work, I'd be literally nauseous sitting at my desk. Ringing ears. Headache.
FWIW, Borla did not take back the exhaust, despite their "great sound, zero drone" claims. Took an $800 bath when I sold it, only a week old.
RPI sells silencers, which are essentially plugs that narrow the aperture of the exhaust tips. With one silencer in each tip, the exhaust quieted down to a nice level. But I'm sure at that point the exhaust system was sapping power.
Track Day
Joined: Jun 2017
Posts: 16
Likes: 0
It's for this reason I won't even consider an aftermarket exhaust for my 2014 CS PDK.
Maybe the PSE if one comes along used for the right price...
Advanced
Joined: Mar 2014
Posts: 85
Likes: 1
I'd be careful about saying "at any rpm range." If you kept the car above 3000 rpm (which is easy and likely with the 6MT) then I would agree the Maxflow does sound good and doesn't drone. However, I had the same exhaust on my 981 S with PDK and it droned, quite a lot in fact, between 1500 and 3000 rpm, which happens to be where the PDK lands most of the time in auto. It droned so much that I took it off and sold it and put the stock back on.