The NGK Iridium IX BKR7EIX is a single iridium spark plug with a 0.6 mm laser-welded center electrode and a taper-cut ground electrode. It is designed for modified engines and as an OE replacement where recommended, offering strong ignitability and anti-fouling. Its 14 mm thread, 19 mm reach, and 5/8-inch hex fit many applications, and the heat range 7 suits performance use. Compared with platinum plugs, iridium plugs like this typically last longer and resist wear better, though they cost more.
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Owners and reviewers generally praise the NGK Iridium IX BKR7EIX for its smooth idle, quick starts, and durability in modified engines. Some note that it is more expensive than standard plugs and that the heat range may not suit all applications.
The NGK Iridium IX BKR7EIX (part no. 2667) is a spark plug for performance use. It suits modified engines and works as a replacement for OE spark plugs where they are recommended. It is built for easy ignition, improved throttle response and resistance to fouling.
The center electrode is a 0.6 mm fine wire with a laser-welded iridium tip. The ground electrode is nickel with a taper cut shape. This design gives the flame more room to expand, which supports quicker starts, better performance and improved efficiency.
