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colder spark plugs

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Xstang82

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what is the part# for colder plugs for the ST
 

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I’ve tried a few different colder plugs. These by far idle the smoothest. C03E0081-4AD7-4EC3-AA5F-E50FD0ECB0A9.jpeg
 

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Xstang82

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don't like NGK? ill check them out
 

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Nope. The 6510’s had a noticeable hiccup at idle. 2 different sets.
 

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Xstang82

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okay ill order the bosch tonight. i got a tune for the ST and i want to optoimise the tune
 

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Xstang82

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what did you gap them at
 

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.028 but that’s a discussion for you and your tuner.
 

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Xstang82

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i under stand
 

SilverST

SilverST

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How the hell do yall get to the back two plugs? They're under a nest of wires and some (what appears to be) AC tubes.
 

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Take the 2 bolts out of the bracket for the hard lines and it’ll move out of the way.
 

5LTR550

5LTR550

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Buying some of these plugs tomorrow
 

Chamorro85

Chamorro85

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So these motors you do need to change the plugs with tuning (optimal performance)?

The fusion sport came with the colder plugs from ford so surprised to see this. About to tune and was curious if this was the case with the ST so glad I found this.
 

TLST22

TLST22

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Bought a set of 6 NGK LTR7BHX (95605) Spark Plug from ZFG. These are the ones Adam recommended to me so that's what I'm going with.
 

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