NGK Ford Focus ST Spark Plugs (One Step Colder)
$36.00
NGK (6510) LTRIX-11 Iridium Spark Plugs (One Step Colder)
We use these plugs on all of our Focus ST builds. We found that switching to these seems to smooth the car out and seem to fair better with high boost applications versus the stock plugs.
-One Step Colder
-Fits All Focus ST Model
-Perfect Upgrade over OEM Plugs
Recommended Gap: .027-.030 Note: Becareful gapping your Iridium Spark Plugs
ngk6510