HKS Super Fire Racing Spark Plug Set of 4 - M40XL Type (Heat Range #8) Car Care Flow testing was performed to

Flow testing was performed to measure the increase in flow rate which produced a maximum result of 38

rather than escaping through into the engine bay

Repositioning the AOS to this location may be necessary for clearance with some front mount intercoolers and rotated turbo kits

Hard Wire Kit Option:

Introducing the new RCM 14mm Superstud Head Stud Kit

HKS Super Fire Racing Spark Plug Set of 4 - M40XL Type (Heat Range #8) Car Care Flow testing was performed toHKS Plugs ignites faster with a predictable strong spark to improve fuel efficiency and achieve the best performance in any conditions and environment. It's very important to provide reliable ignition for an engine to perform at a maximum power. HKS Super Fire Racing Plug is the best plug item for extreme racing conditions, that also will perfectly fit in the stock engine as well. Concept and Features New series of plugs inherits the best from