What is a foil delete? and how is it done? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 02-01-2008, 12:22 PM Thread Starter
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What is a foil delete? and how is it done?

like the title says, I've heard of cat deletes, and muffler deletes. Not so much of a foil delete. When i was crawling around under my truck though i noticed that there is foil wraped around the downpipe.

I'm assuming that is what it means.

Someone explain this please and is there any bad things that could happen if i did it?

thanks )

Typical cummins owner.

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post #2 of 2 Old 02-01-2008, 12:45 PM
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The foil delete pertains to '99.5 and up 7.3's. You just remove the insulation from the intercooler tubes. The foil on your down pipe should also be removed, along with the downpipe. The foil is a heat shield and I would leave it. An aftermarket downpipe is one of the first things that should be put on an OBS truck.


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