What size pipes on 99 GT?

9

99SilvaStang

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Dec 13, 2004

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Ashburn, Va

Mar 11, 2006

#1

• Mar 11, 2006

• #1

Well the title explains most of it but im looking to buy some mufflers to put on my fairly modded 99 GT and I was unsure of what size the inlet and outlet should be on the mufflers. I thought that they should be 2.5 inlet and outlet but again I wasnt sure so I thought I'd ask. Thanks for any help.

 

K

Kilgore Trout

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Mar 30, 2005

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#2

• Mar 11, 2006

• #2

The GT is 2.25"

The Cobra is 2.5"

 

03ghoststang

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Jul 16, 2005

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Los Angeles, California

Mar 11, 2006

#3

• Mar 11, 2006

• #3

GT stock its 2.25 but you do you have a cat-back then they should be 2.5 if you have a cat back though

 

9

99SilvaStang

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Dec 13, 2004

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Ashburn, Va

Mar 11, 2006

#4

• Mar 11, 2006

• #4

nope no catback im just looking to have mufflers put in place of the factory ones. since they are 2.25 the mac mufflers and flowmaster super 40s in the parts section would both work right?

 

the98stang

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Aug 12, 2005

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Clovis, CA

Mar 12, 2006

#5

• Mar 12, 2006

• #5

99SilvaStang said:

nope no catback im just looking to have mufflers put in place of the factory ones. since they are 2.25 the mac mufflers and flowmaster super 40s in the parts section would both work right?

Click to expand...

In the long run you'll end up wanting catback exhaust. I would save your money.

 

Crzyhrse

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Dec 23, 2004

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Seattle, WA

Mar 12, 2006

#6

• Mar 12, 2006

• #6

Kilgore Trout said:

The GT is 2.25"

The Cobra is 2.5"

Click to expand...

I thought the '05 GT was the first to have 2 1/2" exhaust? Everything before it had 2 1/4". Even the '03-'04 Cobra's came stock with 2 1/4" exhaust.

 

the98stang

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Aug 12, 2005

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Mar 12, 2006

#7

• Mar 12, 2006

• #7

Crzyhrse said:

I thought the '05 GT was the first to have 2 1/2" exhaust? Everything before it had 2 1/4". Even the '03-'04 Cobra's came stock with 2 1/4" exhaust.

Click to expand...

 

K

Kilgore Trout

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#8

• Mar 12, 2006

• #8

I am pretty sure Cobra exhaust is 2.5" but I have been known to be wrong occaisonally...

 

stangliter04

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Apr 4, 2005

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Port St John, Florida

Mar 12, 2006

#9

• Mar 12, 2006

• #9

2 1/4 stock
but if you get a catback go with 2 1/2 with 3 1/2 inch tips!