Mustang Forums   Mustang Classifieds   Photo Gallery   Calendars   Search   Live Chat   Contact MF   Sponsors
  Mustang Recalls   Mustang TSB's   News   Timeslips   Timeline   Wallpaper   Member List   Register   Login

Installed Dual Exhaust with Flowmaster 40's

  Printable Version
Mustang >> Ford Mustang Tech >> 2005 - 2008 Mustangs >> 4.0L V6 Specific >> Installed Dual Exhaust with Flowmaster 40's Page: [1]
Login
Message << Older Topic   Newer Topic >>
Installed Dual Exhaust with Flowmaster 40's - 7/3/2005 9:46:56 PM   
justin1213

 

Posts: 6
Joined: 5/29/2005
Status: offline
I just had a muffler shop install 2 flowmaster 40's. They ran a true dual setup meaning no h or x intersection. My mustang now sounds like a beast and vibrates the heck out of the car and I want to tone it down some. It is almost unbearable when steady at 2 grand. I did some research and realize i should have the shop run a cross section (h) between the 2 pipes just like the gt's have. This will help some with the unbearable harmonics and torque. What about resonators? Does it make sense to add resonators to my setup or get 2 milder mufflers. Any suggestions are appreciated!


_____________________________

05 Torch Red V6 Premium, Steeda Cold Air Intake, Steeda Tune, GT Takeoff Dual Exhaust, Xenon Hood Scoop.
Post #: 1
RE: Installed Dual Exhaust with Flowmaster 40's - 7/3/2005 10:08:58 PM   
Badash

 

Posts: 110
Joined: 5/11/2005
Status: offline
how big are the tips?

(in reply to justin1213)
Post #: 2
RE: Installed Dual Exhaust with Flowmaster 40's - 7/4/2005 2:56:02 PM   
justin1213

 

Posts: 6
Joined: 5/29/2005
Status: offline
The tips are 5'' long.

_____________________________

05 Torch Red V6 Premium, Steeda Cold Air Intake, Steeda Tune, GT Takeoff Dual Exhaust, Xenon Hood Scoop.

(in reply to Badash)
Post #: 3
RE: Installed Dual Exhaust with Flowmaster 40's - 7/4/2005 5:26:01 PM   
Tres Wright


Posts: 1717
Joined: 4/12/2005
Status: offline
Wow, sounds like you've got some pretty bad vibration. I'm running duals with GT take-offs on mine. There is a slight vibration at 2100 RPM, but mostly it's a blip as I drive through that RPM range. If the crossover doesn't help, you might try installing a stock harmonic dampener on the exhaust. Depending on how long ago you got the exhaust, the shop may still have the one they cut off your stock exhaust.

(in reply to justin1213)
Post #: 4
RE: Installed Dual Exhaust with Flowmaster 40's - 7/5/2005 10:08:52 AM   
Badash

 

Posts: 110
Joined: 5/11/2005
Status: offline
How large is the diameter of the tips. I have 2 1/4 or 2 1/2 on mine.. they put 3" on it so I could see how it sounded and it was LOUD!.. I have some vibration, but not much,

(in reply to Tres Wright)
Post #: 5
RE: Installed Dual Exhaust with Flowmaster 40's - 7/5/2005 12:13:02 PM   
huffhuff

 

Posts: 172
Joined: 4/25/2005
Status: offline
an h or x pipe should cure your concerns.

(in reply to Badash)
Post #: 6
RE: Installed Dual Exhaust with Flowmaster 40's - 7/13/2005 12:28:09 AM   
justin1213

 

Posts: 6
Joined: 5/29/2005
Status: offline
Had the shop weld a crossover and it helped immensely. The vibration has gone down a lot. There is no more popping when I rev the engine. I am not setting off as many car alarms either! Sounds great and everyones' head turns as I drive by...Including the GTs

_____________________________

05 Torch Red V6 Premium, Steeda Cold Air Intake, Steeda Tune, GT Takeoff Dual Exhaust, Xenon Hood Scoop.

(in reply to justin1213)
Post #: 7
RE: Installed Dual Exhaust with Flowmaster 40's - 7/13/2005 2:08:33 AM   
flapjack


Posts: 614
Joined: 3/19/2005
From: Boston, MA
Status: offline
That is probably the best thing you could do. I waited 2-3 weeks to have it done, and I wish I had done it sooner!

It's now silky smooth, without any of the harshness.

quote:

ORIGINAL: justin1213

I just had a muffler shop install 2 flowmaster 40's. They ran a true dual setup meaning no h or x intersection. My mustang now sounds like a beast and vibrates the heck out of the car and I want to tone it down some. It is almost unbearable when steady at 2 grand. I did some research and realize i should have the shop run a cross section (h) between the 2 pipes just like the gt's have. This will help some with the unbearable harmonics and torque. What about resonators? Does it make sense to add resonators to my setup or get 2 milder mufflers. Any suggestions are appreciated!


(in reply to justin1213)
Post #: 8
RE: Installed Dual Exhaust with Flowmaster 40's - 7/13/2005 2:09:43 AM   
flapjack


Posts: 614
Joined: 3/19/2005
From: Boston, MA
Status: offline
Oops! Didn't read your update until after I posted. ;)

(in reply to flapjack)
Post #: 9
RE: Installed Dual Exhaust with Flowmaster 40's - 7/13/2005 11:10:48 AM   
hamidlmt


Posts: 1565
Joined: 4/2/2005
Status: offline
Nice! Glad you got it toned down to a decent level! In a quest for ever louder exhausts, I guess there is a limit (well, at least for some!). Though, I bet there are a few out there just waiting for that extreme drone of true duals without any crossover.

Hey... any chance of posting a sound clip?

_____________________________

~

2005 4.0L auto. X-cal 2, C&L intake, JBA headers/duals w/custom h-pipe, GT rear bumper, 3.73's, Auburn LSD, UCA/LCA's, 1/4 mile: 14.705

(in reply to flapjack)
Post #: 10
RE: Installed Dual Exhaust with Flowmaster 40's - 7/22/2005 12:45:45 AM   
kingstrunner


Posts: 12
Joined: 7/22/2005
Status: offline
Hey Justin

Today, I had a dual system running flowmasters and an H pipe installed professionally on my 2005 Mustang V6. I love the balanced sound. Anyone on this forum have any opinions on what I have just done? Is there a baseline on the amount of HPs I've gained. I know that Ford factory states 200 HP for the V6. I know I am getting some great balance and airflows with the H pipe and Flowmasters. Let me know and thanks!

Patrick aka kingstrunner from SSF, CA

(in reply to justin1213)
Post #: 11
RE: Installed Dual Exhaust with Flowmaster 40's - 7/22/2005 12:53:50 AM   
flapjack


Posts: 614
Joined: 3/19/2005
From: Boston, MA
Status: offline
I had the same thing done, and love it. Driving to work every day is more fun now.

I'm still working on a sound clip.... I've just been so busy.


quote:

ORIGINAL: kingstrunner

Hey Justin

Today, I had a dual system running flowmasters and an H pipe installed professionally on my 2005 Mustang V6. I love the balanced sound. Anyone on this forum have any opinions on what I have just done? Is there a baseline on the amount of HPs I've gained. I know that Ford factory states 200 HP for the V6. I know I am getting some great balance and airflows with the H pipe and Flowmasters. Let me know and thanks!

Patrick aka kingstrunner from SSF, CA

(in reply to kingstrunner)
Post #: 12
RE: Installed Dual Exhaust with Flowmaster 40's - 7/22/2005 1:05:38 PM   
MikeHawke




Posts: 7155
Joined: 4/27/2004
From: I live in Canada, eh
Status: offline
MikeHawke's photo gallery
you really need the crossover pipe on dual set-ups in order to balance the exhaust pulses.

_____________________________

mustangs are neat.

(in reply to flapjack)
Post #: 13
RE: Installed Dual Exhaust with Flowmaster 40's - 7/22/2005 6:52:25 PM   
flapjack


Posts: 614
Joined: 3/19/2005
From: Boston, MA
Status: offline
I agree. It was the best $60 I've spent on the car so far.

(in reply to MikeHawke)
Post #: 14
RE: Installed Dual Exhaust with Flowmaster 40's - 8/7/2005 12:28:57 AM   
stangfreak2

 

Posts: 117
Joined: 2/8/2005
Status: offline
which version of the 40's did yall use? the original or the super or the delta flow? im thinkin about doin the same thing...is your system cat-back or did you go in front of the cats?

(in reply to flapjack)
Post #: 15
Login OR Register now to post a reply to this forum topic.
Page:   [1]

 

 
Mustang Forum >> Ford Mustang Tech >> 2005 - 2008 Mustangs >> 4.0L V6 Specific
Jump to:
Forum Rules & FAQ
Today's Posts
Most Active Topics
RSS Feeds
Make A Donation

Mustangs:
Classic Mustang
Mustang II
Fox Body Mustang
sn95 Mustang
New Edge Mustang
s197 Mustang
Mustang Clubs
2007 GT500 Mustang
2009 Mustang
Ford Mustang Prices


Featured Sponsors
Advertising Info

Top 10 Posters
pro50sc17932
nanaki14694
88bluegt14536
dan04cobra14535
addermk214016
ride of the 13720
hotrods_n_bo13332
2000gt4.612516
mustangman0211995
1slo8511780

New Vendors
Extreme Dimension
BMR Fabrication
Year One
Auto Badges
Trickflow
Speedware Motorsports
LTM Global
Late Model Restoration
Southern Mustang Parts
BrandMotion

MustangForums.com is not affiliated with or endorsed by Ford Motor Company.