I know mine requires a special wrench with an extension but other than that its pretty easy.

Oh yeah.. dont tighten the sparkplug cover nuts to tight.. theyll break.

 

yup very easy to replace need a deep socket though and Ffej207
is right dont tighten them too much at all just so they are
snug some spark plugs need to be gapped and others come
pregapped... just depends on what brand you buy.

 

Use anti-seized on the plug threads.