plugs and wires noticeable difference?

just curious if anyone has ever actually upgraded their spark plugs and instantly noticed a few more horses, or is it just a bunch of bullshit like getting an intake in my opinion.

Unless the old ones were horribly fouled, it's a worse gain than even an intake. The stock ignition system is suprising very good.

NO difference save your money, if there old replace with stock replacements.