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Best spark plugs + Coil packs?

emichel6888

Go Kart Champion
Location
TX
Red coils should be installed as a set. I've heard mixing black and red coils causes cylinder pressure imbalance that can crack the crankshaft.
Some might think this is a joke, but they really do have to be matched, I read if the shade of red is off by even just a little bit you will lose HP and could seriously damage your engine. The matched sets cost a lot more, but you know how it is, you get what you pay for. You might also want to have them ceramic coated and then PPF, just to be sure. The more you know...
 

JerseyDrew77

Autocross Champion
Location
Virginia & NC
Car(s)
2016 TR GTI S 6MT
Some might think this is a joke, but they really do have to be matched, I read if the shade of red is off by even just a little bit you will lose HP and could seriously damage your engine. The matched sets cost a lot more, but you know how it is, you get what you pay for. You might also want to have them ceramic coated and then PPF, just to be sure. The more you know...

Don't forget a port and polish job on them.
 
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