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5.3 question

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Old Oct 10, 2006 | 01:50 AM
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jays5.3's Avatar
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Default 5.3 question
I saw that the 07 5.3 comes in 320hp, is this just changes to the programming, or is the engine different now?
 
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Old Jan 6, 2007 | 07:39 AM
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Default RE: 5.3 question
Programming and exhaust manifolds, I believe.
 
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