What diameter exhaust with 2007 GT? NEW order! - MustangForums.com

Go Back  MustangForums.com > Ford Mustang Tech > 2005-2014 Mustangs
Reload this Page >

What diameter exhaust with 2007 GT? NEW order!

Notices
2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

What diameter exhaust with 2007 GT? NEW order!

Reply

 
 
 
Old 11-09-2006, 03:36 AM
  #1  
pritzent
Thread Starter
 
Join Date: Nov 2006
Posts: 3
Default What diameter exhaust with 2007 GT? NEW order!

Under the heading of better late than never:

Everything in life finally came together and I finally got my American Muscle ordered. 2007 GT Premium/CS Black/Black w/Interior Upgrade, GT Apperance, Comfort Group plus I'm having them order and install C&L CAI and Diablo Tuner. Finally, I'm looking at an X-Pipe with Flowmasters. What I'm wondering is the DIAMETER of the exhaust. I'm worried about back pressure and burnt exhaust valves. Can I go with 3" of should I drop back to 2.5"?

Thanks . . .

Phil Ritzenthaler
pritzent is offline  
Reply With Quote
Old 11-09-2006, 08:48 AM
  #2  
MBDiagMan
3rd Gear Member
 
MBDiagMan's Avatar
 
Join Date: Aug 2006
Location: North East Texas on the Red River
Posts: 886
Default RE: What diameter exhaust with 2007 GT? NEW order!

Sorry fella, but excessive back pressure has nothing to do with burnt exhaust valves. I suppose that if the mixture were leaned out a BUNCH by exhaust modifications, while making no tune changes to compensate, this could happen, but short of removing the exhaust manifolds altogether, you won't get there.

The factory exhaust system is very free flowing as factory systems go. It would be difficult to open it up enough to cause so much change in mixture that this would be a worry, especially since you will have the diablo and the method to change the tune to compensate.
MBDiagMan is offline  
Reply With Quote
Old 11-09-2006, 09:35 AM
  #3  
Black06stang
4th Gear Member
 
Join Date: Dec 2005
Location: greenville
Posts: 1,268
Default RE: What diameter exhaust with 2007 GT? NEW order!

Your stock pipes are 2.5 inches, you should just get the mufflers. Typically a new x-pipe is only worth a few hp.
Black06stang is offline  
Reply With Quote
Old 11-09-2006, 10:10 AM
  #4  
billyjo
2nd Gear Member
 
Join Date: Oct 2006
Location:
Posts: 434
Default RE: What diameter exhaust with 2007 GT? NEW order!

i have heard nothing but bad things about fllowmasters. I talked with another mustang owner that had to have a pair of flowmasters replaced due to the baffles inside loosening up and ratteling three times. Thats why i choose another muffler.
billyjo is offline  
Reply With Quote
Old 11-09-2006, 12:17 PM
  #5  
hogpowr
3rd Gear Member
 
Join Date: Apr 2006
Location: Central AR
Posts: 618
Default RE: What diameter exhaust with 2007 GT? NEW order!

Brent at brenspeed.com says the off road X is worth about 10 hp with tune, vs tune alone.
hogpowr is offline  
Reply With Quote
Old 11-09-2006, 02:19 PM
  #6  
stangster06
I ♥ Acer
 
Join Date: Feb 2006
Posts: 420
Default RE: What diameter exhaust with 2007 GT? NEW order!

Black is very hard to keep clean and avoid swirl marks.

I think Midas carries Flowmasters with black tips though.
stangster06 is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Galactic
Mustangs For Sale
9
03-30-2017 06:44 PM
Boostaddict
Lethal Performance
2
09-08-2015 09:56 PM
Webster454
2005-2014 Mustangs
1
09-07-2015 04:59 AM
Emblazoned
General Tech
0
09-03-2015 10:45 PM

Forum Jump

Thread Tools
Search this Thread
Advertising
Featured Sponsors
Vendor Directory