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Discussion Starter #1
has anyone put a power chip and ehaust on a 4.6? does it make any difference? am thinking of doing mine.
 

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Discussion Starter #2
Wow I posted his 12 months ago and still no answer! Anyone??
 

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sorry if im late but i just saw this,i got a 4.6 i did cold air intake eng and tranny software made a huge difference.well worth the $$.
 

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Is there anything for my 4.8 ??????????
 
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