What part to replace to get rid of drone?
#1
Rookie
Thread Starter
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I have sikky headers, a borla exhaust, and no cats; what part is causing the drone because I seriously want to get rid of it fully, 1,900-2,300rpms is nearly all booming drone sound and I think after driving with this setup for a year I need a change. Any help figuring out how to fix it would be great. If possible, I want to keep the headers. Thanks again for any replies
#3
Pole Position
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I have PPE headers and Borla and the drone is pretty bad for my ears. The drone wasn't nearly that bad with the stock manifolds, so it's the headers and no cats that really amplify the drone!
Maybe it's just my age too, but I can't stand the drone anymore either and I will make some changes to my exhaust to try and cancel out those frequencies between 1,900 - 2,600 rpm for me.
I'm probably going to start with HF cats, probably GESI and see how that affects the drone/sound?
Maybe it's just my age too, but I can't stand the drone anymore either and I will make some changes to my exhaust to try and cancel out those frequencies between 1,900 - 2,600 rpm for me.
I'm probably going to start with HF cats, probably GESI and see how that affects the drone/sound?
#4
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Thread Starter
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That's what I read to, the high flow cats might help a bit; and ya, my resonators I think are gone, I might end up putting back the stock exhaust and put the cats back as well but just keep the headers and get the tune as well. I want to keep some power but I really want to be high in the rev range sometimes, only thing holding me back is the drone and how loud my exhaust gets in the high rev range. By the way, the car was bought used with all the exhaust work done from the previous owner, and it's really well done work, but I just want to be able to really go full throttle more of the time without causing too much attention.
#5
Lexus Test Driver
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I have PPE headers and Borla and the drone is pretty bad for my ears. The drone wasn't nearly that bad with the stock manifolds, so it's the headers and no cats that really amplify the drone!
Maybe it's just my age too, but I can't stand the drone anymore either and I will make some changes to my exhaust to try and cancel out those frequencies between 1,900 - 2,600 rpm for me.
I'm probably going to start with HF cats, probably GESI and see how that affects the drone/sound?
Maybe it's just my age too, but I can't stand the drone anymore either and I will make some changes to my exhaust to try and cancel out those frequencies between 1,900 - 2,600 rpm for me.
I'm probably going to start with HF cats, probably GESI and see how that affects the drone/sound?
-Mike
#7
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I've tried that. Doesn't work. You need to cancel the drone with some side branch resonators.
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#8
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Your best bet would be altering the mufflers and/or adding resonators. If you have a good welder in your area have him make a twin loop system muffler or side branch resonator like the icode.
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Last edited by Diesel350; 11-09-16 at 10:35 AM.
#9
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I ONLY have the borla catback with stock manifold and it certainly drones...
#10
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Seems to be a lot of different opinions on drone with the cat back systems on our cars. Some people with the borla say it's bad while others say it's not. I am getting my borla cat back installed this Saturday. I'm leaving the stock manifold. Will chime in with my opinion then.
#12
Lexus Test Driver
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I had a terrible drone around 2K after installing PPE "regular" headers and their exhaust, even with high flow cats. Switching to PPE long tube equal length headers and removing the cats made the drone disappear.
I had previously considered have some Helmholz chambers installed. I recall reading a CL thread linked to a discussion on a Mustang site that went into detail about how to size these for a particular rpm.
I had previously considered have some Helmholz chambers installed. I recall reading a CL thread linked to a discussion on a Mustang site that went into detail about how to size these for a particular rpm.