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Old Mar 5, 2008 | 05:00 PM
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F150 46's Avatar
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From: So. Cali.
Mac Headers
Ive heard on other forums that Mac headers for the 4.2 F150 are really good but i wanted some more info on them. Like how much HP can i gain from these headers and if anyone has them on their truck, how do they perform? can you feel the HP? any info on these headers would be nice.
 
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Old Mar 5, 2008 | 05:10 PM
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From: Central Florida
I don't know much about MAC products in the F150 market. But there name is trash when it comes to mustangs.
 
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Old Mar 5, 2008 | 05:15 PM
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c0ckac0la's Avatar
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Originally Posted by F150 46
Ive heard on other forums that Mac headers for the 4.2 F150 are really good but i wanted some more info on them. Like how much HP can i gain from these headers and if anyone has them on their truck, how do they perform? can you feel the HP? any info on these headers would be nice.
How many threads are you going to start on mac headers???
 
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Old Mar 5, 2008 | 07:40 PM
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Originally Posted by ScottFF00
I don't know much about MAC products in the F150 market. But there name is trash when it comes to mustangs.

Mac is trash all around if you ask me....cheap stuff.
 
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Old Mar 6, 2008 | 06:09 AM
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I second that motion!
Mac thrash!
 
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