Viltor Posted July 29, 2015 Share Posted July 29, 2015 Good morning everyone, One question, my B18c4 has OEM spark and plugs, I see most of people use 10.2mm plugs with Iridium plugs. I read it saves u some fuel, and it increase your performance. Should i Get this combo ? 10.2mm cables and Iridium parks ? Or just stick with OEM sparks and plugs ? When Im low in fuel if I stop the car, the next day its difficult to start the car, so I think its time to replace the sparks. Thanks Quote Link to comment Share on other sites More sharing options...
Grant Posted July 29, 2015 Share Posted July 29, 2015 I have magnecore leads.. Standard plugs .. You'll never feel an increase in performance, or see a hike in economy. I only got them because they were red, and cheap. Irridium plugs are over rated IMO Quote Link to comment Share on other sites More sharing options...
Roj Posted July 29, 2015 Share Posted July 29, 2015 Iridium plugs are just longer lasting and have the added bonus of not needing to be gapped before use. You just take them out the box and pop them in! The thicker leads are meant to resist some kind of interference but honestly it's just a visual thing and it's worth replacing old OEM leads anyway. Quote Link to comment Share on other sites More sharing options...
Krzys Posted July 29, 2015 Share Posted July 29, 2015 As above, you might notice something but that's probably if they needed replacing anyway, you won't gain any power for them. Quote Link to comment Share on other sites More sharing options...
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