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 step by step guide to drilling EGR into a JDM head 
time to finish drilling the lower hole all the way through
time to finish drilling the lower hole all the way through
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now that the lower hole is drilled all the way through into exhaust port #4 you need to get a 1/8 NPT tap to tap the lower hole with
now that the lower hole is drilled all the way through into exhaust port #4 you need to get a 1/8 NPT tap to tap the lower hole with
Viewed: 71 times.

here we are tapping the lower EGR port.
here we are tapping the lower EGR port.
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a shop-vac is a handy tool at this point
a shop-vac is a handy tool at this point
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now it's time to vac up all the mess you just made!
now it's time to vac up all the mess you just made!
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make sure to vac out the lower hole very well
make sure to vac out the lower hole very well
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more cleaning......
more cleaning......
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and still more cleaning.....
and still more cleaning.....
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and cleaning still.... gotta be clean when finished!
and cleaning still.... gotta be clean when finished!
Viewed: 73 times.

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