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Author
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Topic: exhaust question
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408LIGHTNING
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Member # 7447
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posted
 
 
when is 2.5 in piping too small. how much hp till u would need something bigger?
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**R.I.P Willie Guzman 5LTRSVT**
1988 lx hatch
2000 ford lightning
2007 sonic blue ZR1
Posts: 527 | From: san jose | Registered: Feb 2007
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mastercudaz
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Member # 7486
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posted
I think there is a flow forumla, you can probably google it, but I thoughtk the general rule was that 2.5" true duals are good up to 400+ horsepower.
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1990 Mustang GT
Posts: 161 | From: San Jose | Registered: Mar 2007
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92stangLX
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Member # 3252
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posted
2.5" will support a shitload of HP. Probably like 600+. With 3" exhaust you tend to loose quite a bit of torque at the low end.
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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Jaejae5.0
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Member # 7958
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posted
2.5 is fine..3 inch would lose low end tourqe but would be louder
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1987 notchback h/c/i 302 & 70mm turbo SOLD
2000 camaro ss cam only
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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91CHP_Coupe
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Member # 7686
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posted
quote:
Originally posted by 92stangLX:
2.5" will support a shitload of HP. Probably like 600+. With 3" exhaust you tend to loose quite a bit of torque at the low end.
+1 Ive seen 500 hp to the rears with 2 1/2 in.
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69 Mach 1
91 Coupe HCI. SOLD
04 DSG Mach 1
Posts: 253 | From: Richmond | Registered: May 2007
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