NGK Copper Spark Plugs One Step Colder 3923, Box of 4 - 2003-2006 Mitsubishi Evo 8/9 Subaru-STI-2018 unlike other drop-in turbocharger upgrades

unlike other drop-in turbocharger upgrades on the market

Loosens and dissolves dirt and grime

they will work with most tuner wheels

Independent muffler per exit

Concave spokes with a nice lip

NGK Copper Spark Plugs One Step Colder 3923, Box of 4 - 2003-2006 Mitsubishi Evo 8/9 Subaru-STI-2018 unlike other drop-in turbocharger upgradesNGK Copper Spark Plugs One Step Colder 3923 Mitsubishi Evo 89 2003 2006 NGK Copper Spark plugs are a great OEM replacement spark plug. They are inexpensive and can be very useful when breaking in new motors. The Standard Spark Plugs have a triple Gasket Sealing Process, and is used in Millions of Vehicles worldwide. These are also ideal for when plugs need to be changed often on cars, or cars that need to get the most out of the stock ignition system.