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Larger Exhaust?

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Old Oct 3, 2005 | 07:47 PM
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schefner's Avatar
schefner
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Larger Exhaust?
I have 86 f250 4x4, 6.9, ATS turbo, C6 with stock exhaust (3"??). What if anything do I have to gain mileage or power wise by going to a 4 or 5 inch exhaust?
 
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Old Oct 4, 2005 | 11:21 PM
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PLC7.3
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From: Manitoba
Mileage and power could be rewards...... but you do not indicate the rear axle ratio in your signature. A good open intake and exhaust do wonders.
 
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Old Oct 6, 2005 | 03:44 AM
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nerdofparadise
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1984 6.9 turbo.. New engine with turbo was installed. Where can we buy a 4" or 5" bolt on exhaust?
 
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Old Oct 13, 2005 | 10:27 AM
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schefner
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Sorry, rear axle is 3.55
 
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