5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Exhaust Help: 2.5" or 3"

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Old 06-21-2007, 11:49 AM
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LesteR723
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Default Exhaust Help: 2.5" or 3"

For a carbed 550hp 510tq 408w stroker ? I'm running long tube BBK headers, fabbing most of my exhaust with an H-pipe, and settin in some SLP Loud Mouth II's
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Old 06-21-2007, 11:51 AM
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90lxrider
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3


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Old 06-21-2007, 11:53 AM
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AdderMk2
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Default RE: Exhaust Help: 2.5" or 3"

ORIGINAL: 90lxrider

3
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Old 06-21-2007, 12:25 PM
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LesteR723
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Default RE: Exhaust Help: 2.5" or 3"

okay well i have a problem in that case:

the collector on my BBK "351w swap headers" is 2.5", and my SLP's are 3"

does anybody know of a place i can get a new collector to weld on? (i can weld)

or does anybody have a better idea? im not too keen on cutting up my brand new headers
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Old 06-21-2007, 01:27 PM
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blackbeautysn95
 
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Default RE: Exhaust Help: 2.5" or 3"

id say buy bigger headers, your exhaust all the way up to the head would be bigger too. that would help alot... maybe im wrong.idk. if you've got small pockets id check summit or jegs for the collectors. pz
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Old 06-21-2007, 02:35 PM
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7upedition
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Default RE: Exhaust Help: 2.5" or 3"

Pipe expander to make a 2.5" to 3" piece for after the collector... go with 3" for sure!

Any local muffler shop should do that for ya for like $10... it takes about 3 seconds per pipe.
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Old 06-21-2007, 02:40 PM
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P Zero
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Default RE: Exhaust Help: 2.5" or 3"

Hmm....2.5 is a little bit too small but 2 3" pipes is too big........Single 3". 1 3" pipe flows more than 2 2.5" pipes........ maybe you should call flowmaster (or whoever) and ask the pro's for help.
-P.
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Old 06-21-2007, 03:03 PM
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justakid
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Default RE: Exhaust Help: 2.5" or 3"

2.5!
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Old 06-21-2007, 03:21 PM
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aode08
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Default RE: Exhaust Help: 2.5" or 3"

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2.5!
not for his power level,id run a tricked out 3" all day
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Old 06-21-2007, 03:39 PM
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stangman94
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Default RE: Exhaust Help: 2.5" or 3"

3 for sure
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