DSM | EVO | EVO X | 3000GT | NISSAN | BMW | SUBARU
NGK IRIDIUM SPARK PLUGS | LFR7AIX | BKR7EIX | BKR8EIX | BKR9EIX

Why NGK Iridium? More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion.

LFR7AIX (STi) plugs are one step colder than stock and recommended for STi's with mild bolt-on's and higher boost.

BKR7EIX (WRX) plugs are one step colder than stock are recommended for WRX's with mild bolt-on's and higher boost.

BKR8EIX (WRX) plugs are two steps colder than stock are recommended if you are running a bigger turbo and pushing more than 150hp over stock.

These plugs DO NOT come pre-gapped.

Sold as a box of 4 plugs.