F250 guy 106 Posted January 12, 2020 (edited) I'm writing this to politely inform all the new folks that may be thinking of trying the E3 spark plugs, don't unless you have a lawn mower. Their not worth the money you'd spend to install them, I tried one years back and my idle was wonky, along with not much giddy up, their a heat range colder, if your expecting install n go no not on a carb bike. Please stick to what the manufacturer put in, they spend millions on R&D they know, if you want to upgrade from copper plugs go iridium IX. You'll be much happier with iridium, if I had to guess probably 8 years ago I put the DPR8EIX9 in and I couldn't be happier. Still looks like new. You'll save big in the long run, satisfaction in knowing your machine is happy. Edited January 12, 2020 by F250 guy 2 Share this post Link to post Share on other sites
_Wilson_™ 6,434 Posted January 12, 2020 10-4 on the NGK iridium IX 1 Share this post Link to post Share on other sites
