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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Exhaust Drone Is Fixed

  • Thread starter Thread starter Jakes
  • Start date Start date Jun 17, 2004
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J

Jakes

New Member
May 8, 2004
84
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Jun 17, 2004
#1
  • Jun 17, 2004
  • #1
I'm spreading the word.

My Magnaflow cat-backs had the 2000 rpm drone and was driving me crazy. I read some info over in the Corral forums and decided to try it. IT WORKS!!!

The problem is the engines strongest tone at 2000 rpm causes the tail pipes to resonate (vibrate like a pipe organ). The fix is to install Side Branch Resonators on the tail pipes to cancel the tone.

Here's the link to the Corral forum, it's explained in good detail there with pics.

http://www.corral.net/forums/showthread.php?threadid=496793

WATCH THE WORD WRAP!

....Jakes
 

Purebred

New Member
Aug 4, 2003
204
0
0
Maryland
Jun 17, 2004
#2
  • Jun 17, 2004
  • #2
Guess I'm one of the few who likes the drone

Thx for the info though
 

jrc_03_gt

New Member
Jan 1, 2004
786
3
0
Jun 17, 2004
#3
  • Jun 17, 2004
  • #3
I like the drone too!
 
C

CatmanJJ

Captain Tangnet
20+ Year Stangneter
Feb 5, 2002
4,379
1
68
Maryland
Jun 17, 2004
#4
  • Jun 17, 2004
  • #4
I like drone when it's not excessive. With my magnaflow system it's mostly between 2000 and 2300 rpms. I like the drone for the most part because it's not overbaring like with Flowmasters and doesn't look like it's worth the effort to change.
 

Blakers01GT

Master of the Clubhead
Founding Member
Sep 21, 2001
2,110
0
0
Brown Deer, WI
Jun 17, 2004
#5
  • Jun 17, 2004
  • #5
I found a way to fix it myself, don't cruise at 2000 rpm's


no, good stuff though, I don't mind the drone that much though.
 

cmb91LX

New Member
Apr 20, 2004
432
0
0
Memphis
Jun 17, 2004
#6
  • Jun 17, 2004
  • #6
drone=love
 

bergs

Member
Jan 19, 2004
117
0
17
new jersey
Jun 17, 2004
#7
  • Jun 17, 2004
  • #7
the louder the better
 
H

huesmann

Founding Member
Jun 21, 2002
332
0
16
Jun 17, 2004
#8
  • Jun 17, 2004
  • #8
The drone is because the mufflers are the same size. If they were slightly different the drone would be gone.
 

merc123

Active Member
Jan 27, 2003
420
2
39
North GA
Jun 17, 2004
#9
  • Jun 17, 2004
  • #9
Mine ONLY drones at 2000-2100 RPM so it's very limited and I hate it believe it or not. I wish it would drone from 2000-3000
 

kirkyg

Founding Member
Jun 14, 2002
3,568
1
56
Beaumont, TX
Jun 17, 2004
#10
  • Jun 17, 2004
  • #10
I think that post is interesting...however woudln't that adversely increase backpressure and lower engine output? Your basically creating another cross over that air can get caught in and create more backpressure.

kirkyg
 

340.29m/s

New Member
Sep 22, 2003
213
0
0
Blue Springs, Mo
Jun 17, 2004
#11
  • Jun 17, 2004
  • #11
With smalled pipes and a better way of mounting them... this could be very helpful for some people.

I prefer a little drone like everyone else on here though.

It's still cool that people are out there "tweaking and testing" things though.... you don't see a lot of do it yourself mods anymore.
 

01GT eibach

Active Member
Nov 18, 2002
1,075
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36
Pittsburgh, PA
Jun 17, 2004
#12
  • Jun 17, 2004
  • #12
Bassani baffles
 

sabrooks

Founding Member
Oct 10, 2002
228
0
0
Phenix City. Alabama
Jun 17, 2004
#13
  • Jun 17, 2004
  • #13
I like the way my Flowmasters drone. The louder the better
 
S

scion4LIFE

New Member
Jun 2, 2004
49
0
0
Jun 17, 2004
#14
  • Jun 17, 2004
  • #14
ARENt baffles easier and cheaper?
THAT is Coool though
 
J

Jakes

New Member
May 8, 2004
84
0
0
Jun 18, 2004
#15
  • Jun 18, 2004
  • #15
If you don't have the 2000 rpm drone or genuinely enjoy that sound, then Godspeed (oops, maybe I shouldn't say "speed" around here). If on the other hand you too suffer from that annoying resonance everytime your engine passes through that 1800 - 2100 rpm range and want to get rid of it, here's one solution.

LIRKYG---A side branch resonator is basically a length of exhaust pipe welded into the side of the tail pipe and closed on the other end. The only thing that enters it is sound, I don't think it can cause any restriction.

01GT EIBACH & SCION4LIFE---I can't speak to the effectiveness of the Bassini Baffles directly but..., on the Corral site somene mentioned they had tried them. He said they helped a little but the drone was still annoying and he wanted to get rid of it.

....Jakes
 

Black2001GT

Founding Member
Feb 12, 2001
1,267
0
36
Saints fan Stuck in FalCANTs country
Jun 18, 2004
#16
  • Jun 18, 2004
  • #16
3.73's will fix that pesky Drone.
 

kirkyg

Founding Member
Jun 14, 2002
3,568
1
56
Beaumont, TX
Jun 18, 2004
#17
  • Jun 18, 2004
  • #17
jakes, so your saying that the pipes are just welded on but they are solid all the way through or you dont cut a hole in your exhaust pipes?

kirkyg
 

01GT eibach

Active Member
Nov 18, 2002
1,075
0
36
Pittsburgh, PA
Jun 18, 2004
#18
  • Jun 18, 2004
  • #18
Jakes said:
01GT EIBACH ... -- I can't speak to the effectiveness of the Bassini Baffles directly but..., on the Corral site somene mentioned they had tried them. He said they helped a little but the drone was still annoying and he wanted to get rid of it.
Click to expand...
For anyone wanting every last bit of drone gone, there is another option to consider. Weld in some 18" Magnaflow mufflers. Personally, I would do that instead of the suggestion in this thread, but that is just my opinion.

My recommendation for the Bassani baffles comes from personal experience. They have never been removed from my tips since I first installed them over a year ago. They are cheap, easy to install, and very effective. I, too, was questioning the Magnaflow catback (no packs) purchase the first time I was on the highway with a CD playing and trying to hold a conversation. We were practically yelling at each other. The baffles corrected all that. I will concede that there is still a residual drone, but it so much less now. I would guess the drone noise level was probably cut in half (or so), while still having a very cool (although slightly quieted) exhaust note heard from the street. Any one wanting to fix the drone, I would recommend the baffles first which are much easier and cheaper -- they are also easily removable when you want to be loud. That is just my personal opinion, though.
 

kirkyg

Founding Member
Jun 14, 2002
3,568
1
56
Beaumont, TX
Jun 18, 2004
#19
  • Jun 18, 2004
  • #19
Yea and then the muscle car sound is gone and you have exhaust that gets quieter the higher you rev past 3000 rpms

kirkyg
 
J

jbritt1234

New Member
Aug 14, 2003
156
0
0
Knoxville, TN
Jun 18, 2004
#20
  • Jun 18, 2004
  • #20
Black2001GT said:
3.73's will fix that pesky Drone.
Click to expand...

Not accurate in all cases, didn't work for me!

I ended up ditching the o/r pipe.
 
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