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Has anybody tried the brisk EOR15LGS ? I've heard there are HP and fuel economy boost after the replacement.
 

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I simply cannot abide useless people.
2006 2.5i and 2002 3.0 wagons.
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Honestly, plugs can only gain my a few HP AT MOST, and that is typically the difference between a fresh plug and a worn one.

Stick with what works, NGK. These engines are a bit picky on plugs.
 

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Honestly, plugs can only gain my a few HP AT MOST, and that is typically the difference between a fresh plug and a worn one.

Stick with what works, NGK. These engines are a bit picky on plugs.
agree 100% My family has 6 subarus the ALL run NGK's ONLY
 
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