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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#2
Wed, March 17th, 2010, 03:48 AM
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Sorry, the only thing I really know about the wideband O2's is that they are damn expensive.
From what I have heard they are used because they are more accurate than EGT gauges. They will not replace your factory sensors, you weld them in their own bungs (1 per bank, or 1 after the "Y"), and use a seperate gauge. I don't know if it would be worth using if you were not doing your own tuning, but sure would be nice so you can keep a close eye on things. Sorry I don't know more about them. 
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