Denso Iridium Power Spark Plug (IW16 x 1). You can check here to see if IW16 is the correct upgrade plug for your vehicle. It steadily gives a high level of response under a variety of driving conditions.
1 x DENSO IRIDIUM POWER IK16 Spark Plug Performance/Racing/Tuned/Turbo JAPAN-USA
DENSO Iridium Power Plus Spark Plug SC20HR11 3444 Lot of 4 Used for 50,000 Miles
Denso Cabin Air Filter - 453-1019 9.2" x 12.1" x 1.6"
6 x NGK Iridium IX Spark Plugs BKR7EIX Colder Heat Range 7> Modified/Turbo/Tuned
4 x NGK Iridium IX Spark Plugs BKR7EIX11 Colder Heat Range 7 Honda Acura Toyo ++
4 x NGK Iridium IX Spark Plugs BKR8EIX Colder Heat Range 8 for Race Tuned Modifi