Exhaust Drone ?
03-23-2007, 01:20 AM
#21
2nd Gear Member
Join Date: Mar 2007
Location:
Posts: 355
RE: Exhaust Drone ?
ORIGINAL: drbobvs
Right way = weld in some resonators.
Cheap way = Go to a welding supply store and buy "welding blankets" Wrap them around the muffs and then tie them on tightly with stainles steel wire (Home Depot). It's ghetto, but works like a charm.
have Borla axlebacks that drone alot between 1800-2000 rpm. Can anyone recommend a fix?
Cheap way = Go to a welding supply store and buy "welding blankets" Wrap them around the muffs and then tie them on tightly with stainles steel wire (Home Depot). It's ghetto, but works like a charm.
03-26-2007, 01:20 PM
#25
1st Gear Member
Join Date: Feb 2007
Location:
Posts: 100
RE: Exhaust Drone ?
[align=left]I installed Pypes Violators 2 weeks ago also. I love the sound, deep throaty, but not to loud. (unless you really get into it) No drone at first, but then one day I had it, not as bad as the Flowmasters, but it still bugs me. Then the next time I drive it, no drone! Really weird, I can't seem to figure why sometimes it drones, and sometimes it doesn't. Weather, temp. etc. don't seem to matter. I checked the pipe clamps, and they were tight. Maybe I'm just nuts! Oh well, I can live with it until I can save up for some Corsa's!
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03-26-2007, 02:29 PM
#26
2nd Gear Member
Join Date: Jun 2006
Location:
Posts: 448
RE: Exhaust Drone ?
One technique that worked well for me was to completely empty the trunk (no tools, no junk; just leave the spare). A lot of buzz went away right after that. Then I stuffed the trunk with some rigid foam pillow material from an old couch, which did a lot to dampen drone even more. The point is, the trunk is a very large resonating chamber all by itself, and configuring it to minimize buzz and vibrations can do a lot to reduce drone - at least in my case.
03-26-2007, 03:36 PM
#27
3rd Gear Member
Join Date: Sep 2006
Location: California
Posts: 784
RE: Exhaust Drone ?
Isnt drone just the same sound waves coming out of the seperate tips and meeting in the cabin of the car? If so... one could get two different mufflers... one bassani one borla... or one stock one flowmaster... that would fix it! Why doesn't a company take this into account while designing the exhaust systems? Instead of making a muffler, and then mirroring it to the other side, design two that complement each other to cancel out any reverberations or drone...
03-26-2007, 06:02 PM
#28
2nd Gear Member
Join Date: Jun 2006
Location:
Posts: 448
RE: Exhaust Drone ?
ORIGINAL: Feng Houzi
Isnt drone just the same sound waves coming out of the seperate tips and meeting in the cabin of the car? If so... one could get two different mufflers... one bassani one borla... or one stock one flowmaster... that would fix it! Why doesn't a company take this into account while designing the exhaust systems? Instead of making a muffler, and then mirroring it to the other side, design two that complement each other to cancel out any reverberations or drone...
Isnt drone just the same sound waves coming out of the seperate tips and meeting in the cabin of the car? If so... one could get two different mufflers... one bassani one borla... or one stock one flowmaster... that would fix it! Why doesn't a company take this into account while designing the exhaust systems? Instead of making a muffler, and then mirroring it to the other side, design two that complement each other to cancel out any reverberations or drone...
