4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Spark Plugs

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Old 06-27-2006, 05:39 AM
  #11  
racer02GTstang
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Default RE: Spark Plugs


ORIGINAL: rjgstang

I SAY BRISK all the way, 50 mag dynoed a 99-04 gt and added 1.92 hp just from a simple plug change.
brisk iced tea?
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Old 06-27-2006, 07:54 AM
  #12  
FDNYBullitt
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Default RE: Spark Plugs

Even with some simple mods, just go with stock Motorcraft plugs. We get a few cars in with slight mis at idle or crusing and find that the owner put in Bosch, NGK or some other off brand. For some reason these motors seem to like the originals, good luck.
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