Shouldn't take more than an hour all in. And that includes taking the inlet manifold off. It is much easier to take the manifold off and struggle. If you've never changed them then its worth swapping them! Put some good plugs in like NGK Iridium then you won't have to worry for a while.
Definitely worth swapping them out for some good plugs, then you won't have to worry for a while. You never know they could still be factory originals in the back!
Can you guess which plugs were on the back bank of my car?
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