Mazdaspeed NGK 1-Step Colder Spark Plugs - Set of 4

Came pre gapped perfectly as described. Car kinda pops lil when you first start it up, totally normal. Take it for a drive and it quickly goes away. Overall satisfied with this product

NGK Iridium IX Spark Plug SET of 4

NGK (BKR7EIX-11) Iridium Spark Plugs One Step Colder Set of 4 Honda Ci – Import Image Racing

NGK LFR7AIX Iridium Spark Plugs Subaru WRX 2006-2014 / STI 2004-2021 – Import Image Racing

Mazda Performance Parts New Products - Page 6 - page 6

NGK (BKR7EIX-11) Iridium Spark Plugs One Step Colder Set of 4 Honda Ci – Import Image Racing

NGK Ruthenium spark plugs

Spark Plugs — Speed Science

Denso (5339) ITV20 Iridium Power Spark Plug, (Pack of 1) : Automotive

Please note, these are technically the one-step colder plugs for this fitment, however, it is more common to run these even on factory vehicles. If

NGK LTR6IX Iridium Spark Plugs – Set of 4 – MazdaSpeed & Ford ST / RS – OEM Heat Range

SPEED PERF6RMANC3 is your number one stop for Mazdaspeed performance parts and built engines. We sell everything you need to upgrade your mazdaspeed 3

NGK 1 Step Colder Spark Plug Set of 4 - SPEED PERF6RMANC3

NGK LTR7IX-11 (6510) 1-step colder Spark Plugs (QTY: 4, 6,or 8) - Pre- – TunePlus, Inc

NGK Park Auto Motorsports