Ngk bpmr7a to bosch, I originally thought the NHSP was a Torch because of the model number on it. From the home page the website lists the Iridium IX as "ultimate performance", and then there is a "OE Style" Iridium. Is there Nov 20, 2006 · Visiting the NGK site left me confused. However the Torch from the snowblower has the obvious Torch branding. Feb 10, 2015 · Any opinions about these 2 spark plugs: NGK Laser Iridium ILZFR6C-11K Bosch Double-Iridium 0 242 240 715 They are going to get installed in a Mitsubishi Lancer 4A91 engine that has been converted to LPG. IIRC, it's all made in USA. Not sure about the Ruthenium HX plugs, as they were not around when I contacted NGK about the longevity of the various grades. Nevertheless, I expect them to last at least as long as the Iridium Laser plugs. Sounds like iridium is the way to go for an extra $5. I'm used to seeing "Laser Iridium" on parts lists everywhere.


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