HKS M-Series Super Fire Racing Spark Plugs (Single) M50HL WRX 15-21 | 50003-M50HL-1 vendor_DFC - Increases Air Flow

- Increases Air Flow

anodized and fitted with a carbon fiber insert

TIG welded T304 stainless steel pipes that feature laser cut flanges that improves both horsepower and torque and improves throttle response while increasing that flat 4 rumble

Effective on stock to high performance vehicles w/ upgraded turbines

It is made with 100% aluminum and is tube and fin constructed

HKS M-Series Super Fire Racing Spark Plugs (Single) M50HL WRX 15-21 | 50003-M50HL-1 vendor_DFC - Increases Air FlowProduct Fitment: 2015 2021 Subaru WRX 2013 2016 Scion FR S 2013 2020 Subaru BRZ 2017 2020 Toyota 86 The HKS M50HL Super Fire Racing Spark Plug is a one step colder iridium plug engineered for high performance engines under demanding conditions. Ideal for turbocharged or tuned applications, it offers enhanced ignition, reliability, and resistance to carbon buildupperfect for performance enthusiasts pushing the limits. Features: Heat range equivalent to