What are good aftermarket spark plugs for an 05 GS500F?

[will123]

Any help would be greatly appreciated

[LimaXray]

are you having problems with your stock plugs fouling?  if not, just stick with the stock NGKs 

otherwise, there have been good things said about the Champion 809's for people with fouling problems.

[ASIA 1]

Try this one : NGK DPR8EIX-9

[average]

are you having problems with your stock plugs fouling?  if not, just stick with the stock NGKs 

otherwise, there have been good things said about the Champion 809's for people with fouling problems.

Those arent the black Champion plugs, are they? It would pretty hard to tell what was going on with a black plug