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235 Posts
I'm gonna be ripping off my upper intake manifold at some point in the near future, and from what I've read this sounds like an excellent time to do the spark plugs. I've got 174km on my truck, and I doubt they've been looked at since she rolled off the line. I'm just wondering, for the all the people that have done the plugs the "easy" way, do I need to remove the entire manifold assembly, or can I get away with just the upper? Also wondering if anyone has seen any benefit, besides longevity, from springing for the fancy shmancy, according-to-Rock-Auto OEM Iridium Laser plugs, or if I'll be fine with the cheapo Iridiums?