When is a good time to change sparkplugs? I've got 63k on my car right now.

 

Not for a while. Stock plugs can hit 100k IIRC.

 

If you look in your owners manual, Honda/Acura suggests doing the change at 105k as part of the 105k service.
If you dont have a owners manual, one can be provided to you on this website, in the FAQ section or in Honda/Acura's owner's link.
You can always do it sooner to gain some MPGs and performance. Make sure you use the correct plugs. You can choose from Iridium IX or Lazer Iridium plugs. The IX are cheaper but wont last you to the next 105k. Lazer plugs are more but worry free till 210k

 

ok thanks guys.