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Dual Exhaust 3" Tail Pipes?

  • Thread starter Thread starter shotsy
  • Start date Start date Jul 11, 2005
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shotsy

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Apr 8, 2005
233
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Oklahoma City
Jul 11, 2005
#1
  • Jul 11, 2005
  • #1
Anyone know where to get some 3" tail pipes that will fit a 70? the biggest I can seem to find are 2.5"
 

thehueypilot

Active Member
Feb 25, 2004
1,084
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37
Medina,Tennessee
Jul 11, 2005
#2
  • Jul 11, 2005
  • #2
Summit racing......part number MPE-15819 67-70 3" Magna Flow. If I hadn't just replaced mine with a 2.5" (3" was not avalible as a kit until now) I would of bought this kit. If you get it let me know how well it works and sounds.
 

shotsy

New Member
Apr 8, 2005
233
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Oklahoma City
Jul 11, 2005
#3
  • Jul 11, 2005
  • #3
I've already got the X pipe and muffs, just looking for the tail pipe 's to go over the axle? 500+ is a bit steep thanks for the link
 
D

D.Hearne

New Member
Sep 29, 2000
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south louisiana
Jul 11, 2005
#4
  • Jul 11, 2005
  • #4
What makes you think you need 3" tailpipes? What's under the hood, a twin turbo Cat diesel?
 

6Stang7

New Member
Jun 1, 2003
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Livermore, CA
Jul 11, 2005
#5
  • Jul 11, 2005
  • #5
local muffler shop should have them.
 

mdjay

Premium Sponsor
Dec 9, 2003
896
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Las Vegas, NV
Jul 11, 2005
#6
  • Jul 11, 2005
  • #6
I'm runnin 550+ hp through 2.5 and it does just fine
 

6Stang7

New Member
Jun 1, 2003
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Livermore, CA
Jul 11, 2005
#7
  • Jul 11, 2005
  • #7
eh, i would go to 3" if i were you. 450+ is well into 3".
 
D

D.Hearne

New Member
Sep 29, 2000
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south louisiana
Jul 11, 2005
#8
  • Jul 11, 2005
  • #8
Why stop with dual 3"? Why not shoot for dual 5"? You could fab up your own system using readily available pipe for 18 inch wheelers. Be the first on the block with HUGE pipes. They'll look as cool as those show trucks runnin the interstates with dual 8-10" stacks. ( we call em "chicken haulers" )
 

shotsy

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Apr 8, 2005
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Oklahoma City
Jul 11, 2005
#9
  • Jul 11, 2005
  • #9
I Didn't ask to get beat up and I'm sure that I'm not the first person to ever run 3" pipes on a mustang?
 
D

D.Hearne

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Sep 29, 2000
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south louisiana
Jul 11, 2005
#10
  • Jul 11, 2005
  • #10
3" is WAY too big. For anything but something like 500+ cubic inch motors. Spend your money on something worthwhile. 3" systems are something akin to those things you've seen advertised that make you car get 100 mpg. All hype. Nothing for your money but pipes that are hard to deal with .
 
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fast shelby

Founding Member
Jun 10, 2002
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7
Rutland, MA
Jul 12, 2005
#11
  • Jul 12, 2005
  • #11
Anything over 550 hp should be looking at 3" or bigger. I am looking at 3.5 " for my car. Dumps out before the rear axle though. Motor makes 850 hp
 

brianj5600

Active Member
Sep 19, 2003
1,964
2
39
Middle TN
Jul 12, 2005
#12
  • Jul 12, 2005
  • #12
I'm not trying to be mean, but your sig looks closer to 350hp. 2.5" would be more than enough. I'm hoping to push 700 through 2.5".
 

shotsy

New Member
Apr 8, 2005
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Oklahoma City
Jul 12, 2005
#13
  • Jul 12, 2005
  • #13
Ok so my exhaust is too big, I'm shooting for somewhere around 400 HP, I've already got the X pipe and the muffs in the car and they sound great, can I use 2.5 tail pipes with reducers off of the mufflers, sure I can dumb question
 

mdjay

Premium Sponsor
Dec 9, 2003
896
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16
Las Vegas, NV
Jul 12, 2005
#14
  • Jul 12, 2005
  • #14
I would run them if I was running this strictly on the track. They almost have to be dumped before the rear axle. They would be pretty tough to put through the back.
 

LMan

Founding Member
Aug 10, 2002
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Mom's basement
Jul 12, 2005
#15
  • Jul 12, 2005
  • #15
fast shelby said:
Anything over 550 hp should be looking at 3" or bigger. I am looking at 3.5 " for my car. Dumps out before the rear axle though. Motor makes 850 hp
Click to expand...




 
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D.Hearne

New Member
Sep 29, 2000
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south louisiana
Jul 13, 2005
#16
  • Jul 13, 2005
  • #16
On my 400-450 horse 331 stoker-sixpacked 89 Ranger, I've got Shelby style Tri-Y's, into dual 2.25" pipe, they run into an equalizer tube of my own making, which is a single 4" x 12" long pipe, then back into dual 2.25" pipe, into dual 2.5" Dynomax turbo's, then straight out the rear of the truck. If there's a restriction, I sure as hell can't tell. This is a 3800 lb truck that runs mid 13's in the 1/4 mile.
 

jasonn

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Sep 26, 2002
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By Rochester MN
Jul 13, 2005
#17
  • Jul 13, 2005
  • #17
The only way to tell is if you test the car with and without the exhaust. I was also looking for 3" tailpipes for mine but couldn't find them. I think if you are running close to or over 500 horse and you want to get EVERYTHING you can out of your car then 3" is the way to go. I have 520 horse and 2.5 is choking it down quite a bit. Tried it at the track. No exhaust = 11.39@119. Exhaust = 11.61@116.5. This is full 2.5" flowmaster 2 chambers with their mandrel bent tail's. You can't really feel a difference on the street but to pick up a couple tenths is quite a bit. Just my 2 cents. I just e-mailed magnaflow to see if they would just sell the tailpipes. I'll let you know what they say.
 

thehueypilot

Active Member
Feb 25, 2004
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37
Medina,Tennessee
Jul 13, 2005
#18
  • Jul 13, 2005
  • #18
I know my 2.5" CNC bent, over the axle Flowmaster tail pipes are a very tight sqeeze. 3" must really, really be tight?
 

mdjay

Premium Sponsor
Dec 9, 2003
896
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16
Las Vegas, NV
Jul 13, 2005
#19
  • Jul 13, 2005
  • #19
jasonn said:
The only way to tell is if you test the car with and without the exhaust. I was also looking for 3" tailpipes for mine but couldn't find them. I think if you are running close to or over 500 horse and you want to get EVERYTHING you can out of your car then 3" is the way to go. I have 520 horse and 2.5 is choking it down quite a bit. Tried it at the track. No exhaust = 11.39@119. Exhaust = 11.61@116.5. This is full 2.5" flowmaster 2 chambers with their mandrel bent tail's. You can't really feel a difference on the street but to pick up a couple tenths is quite a bit. Just my 2 cents. I just e-mailed magnaflow to see if they would just sell the tailpipes. I'll let you know what they say.
Click to expand...


Part of the ET gain here is the weight loss!
 

jasonn

Founding Member
Sep 26, 2002
316
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16
By Rochester MN
Jul 13, 2005
#20
  • Jul 13, 2005
  • #20
mdjay said:
Part of the ET gain here is the weight loss!
Click to expand...

Wrong. When I unbolt it, I just turn the pipe out of the way and put one bolt back in the header to hold it up out of the way. I do not remove the exhaust system. Hueypilot, I was thinking the same thing. My 2.5 is tight also.
 
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