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SUPER FIRE RACING M35LF50003 M35LF SUPER FIRE RACING M Series Ultimate spark plug "M". Ignitionability, durability, anti insulation are all reinforced. HKS has made the best plug for both tuning engines and stock engines. Features 0. 6mm Iridium Alloy Center Electrode Iridium alloy center electrode reduces voltage requirement and improves ignition performance and durability. Outer Electrode with Platinum Chip The outer electrode incorporates a square platinum chip which

2015-2018 STI

This knob weighs in at 242g

more air flow and no clogs

Tuned and dyno-tested to improve acceleration and engine sound

Simply remove the AFM valve motors from the factory exhaust

+32wtq (14

Make your turbo happy

we have continued our “StealthBox” heatshield design

and an intake filter

The rowdy cavalry

it heats up and it’s not unusual to see air temperatures of over 400* F entering your intercooler

but when boost levels are increased