what are the best spark plugs for gsr copper platinum irridium ????? i just bought the bkr6e 11 for my gsr but did not put them in yet please give me feed back

 

I'm sticking to the stock NGK platinum plugs from now on.

I've used the NGK ZFR6F-11's and the BKR6E-11's before and I still like the stock platinums better. The car starts quicker, stronger, and idles smoother with the platinums. Could have been that I didn't gap the plugs all the way to 1.3mm. Instead, I only gapped them to 1.28/9mm.