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

Mazdaspeed E85 Safe HPFP O-Ring Kit and NGK Spark Plugs Combo

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

NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle

NGK 6510 1-step Colder Iridium Spark Plug’s - Mazdaspeed / Focus RS/ST / Ecoboost Mustang Set of 4

Spark plug replacement 2018 Mazda 3 2.5L 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums

N54/N55 NGK 1 STEP COLDER SPARK PLUGS – Projexeuromotive

NGK 6510 LTR7IX-11 Iridium IX Spark Plug : Automotive

NGK (ILZKBR7B8G) 97968 1 Step Replacement Spark Plug A must for all cars running more than 400hp+ for much reliable and better performance. 1-Step

NGK Colder Spark Plugs N54

NGK Iridium IX Spark Plug SET of 4

1 step colder plugs - stutter in 3rd

Mazda Performance Parts New Products - Page 6 - page 6

Denso (5340) ITV22 Iridium Power Spark Plug, (Pack of 1) : Automotive

Pre-Gapped NGK Iridium IX Spark Plug SET of 4 - FORD/MAZDA [NGK6510_LTR7IX-11] - $65.00USD : Stratified Automotive Controls

NGK 97506 2 Step Colder Spark Plug - Burger Motorsports