Notices
4.0L V6 Technical Discussions Any questions about engine, transmission, exhaust, tuners/CAI, or gearing can be asked here!

Bad exhaust drone!!

Thread Tools
 
Search this Thread
 
Old 08-14-2009, 07:11 PM
  #1  
rockon1
1st Gear Member
Thread Starter
 
rockon1's Avatar
 
Join Date: Jul 2009
Location: Arizona
Posts: 65
Default Bad exhaust drone!!

Just got duel exhaust installed with magnaflo mufflers on my V6. Outside of the car sounds great, inside not so great. It was put on by a local shop. Is this pretty normal or is there something I can do. Sorry don't know a lot about this.

Thanks
rockon1 is offline  
Old 08-14-2009, 07:45 PM
  #2  
393strokervert
1st Gear Member
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default drone

did you get a o/r mid-pipe? or are you still running the stock cats
393strokervert is offline  
Old 08-14-2009, 09:05 PM
  #3  
jtstakelin
2nd Gear Member
 
jtstakelin's Avatar
 
Join Date: Mar 2009
Location: Kentucky
Posts: 384
Default

you need to have some resonators installed. That will cause the exhaust gas to reach the mufflers at slightly different times and cause the drone to be less. I need a set on mine.
jtstakelin is offline  
Old 08-14-2009, 10:15 PM
  #4  
tx_zstang
5th Gear Member
 
tx_zstang's Avatar
 
Join Date: May 2007
Location: Central Texas
Posts: 2,388
Default

I tried a set of magnaflow resonators as mufflers. The drone was horrible. Took them off the next day.
The magnaflow dual in/out in my truck drones, too, but with some shielding, it blocked a lot of the drone.
tx_zstang is offline  
Old 08-14-2009, 10:18 PM
  #5  
fallfast90
4th Gear Member
 
fallfast90's Avatar
 
Join Date: May 2006
Location:
Posts: 1,481
Default

haha, you think that is bad? I had a o/r setup in my 3.8 with a fully gutted interior. Now that is drone, lol. Like others have said though, go with some resonators. Magnaflow isn't known to be that loud, kindof surprised at that.
fallfast90 is offline  
Old 08-14-2009, 11:56 PM
  #6  
rockon1
1st Gear Member
Thread Starter
 
rockon1's Avatar
 
Join Date: Jul 2009
Location: Arizona
Posts: 65
Default

Originally Posted by 393strokervert
did you get a o/r mid-pipe? or are you still running the stock cats
Stock Cats
rockon1 is offline  
Old 08-14-2009, 11:58 PM
  #7  
rockon1
1st Gear Member
Thread Starter
 
rockon1's Avatar
 
Join Date: Jul 2009
Location: Arizona
Posts: 65
Default

Originally Posted by tx_zstang
I tried a set of magnaflow resonators as mufflers. The drone was horrible. Took them off the next day.
The magnaflow dual in/out in my truck drones, too, but with some shielding, it blocked a lot of the drone.
What kind of shielding do you mean? I was thinking dynamat in the trunk and floor board might help but not sure.
rockon1 is offline  
Old 08-15-2009, 12:07 AM
  #8  
tx_zstang
5th Gear Member
 
tx_zstang's Avatar
 
Join Date: May 2007
Location: Central Texas
Posts: 2,388
Default

Actually I used a metal shield above the muffler (this was on the truck). It defelcted a lot of the noise away/out, so interior sound material wasn't needed.
That'd be a little harder to do something like that on a stang though, but it could be done.
Interior dynamat might be your best choiuce...or a change in the setup.
tx_zstang is offline  
Old 08-16-2009, 10:16 AM
  #9  
rockon1
1st Gear Member
Thread Starter
 
rockon1's Avatar
 
Join Date: Jul 2009
Location: Arizona
Posts: 65
Default

I also just noticed that where the factory exhaust came together and went back to the one side. The shop cut it there then caped it, but there is a 2 or 3 inch branch (again caped) on the way back instead of a straight shot on the one side. Would that cause any performance problems or more drone?
rockon1 is offline  
Old 08-16-2009, 10:48 AM
  #10  
393strokervert
1st Gear Member
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default

can you take a picture of it & use photobucket or something for a link so we can take a look at it?
393strokervert is offline  


Quick Reply: Bad exhaust drone!!



All times are GMT -5. The time now is 06:16 AM.