Are HKS plugs any better than standard?

Is there an equivalent to these in NGK?

Do they come with the gap pre set or do you have to set them?


Thanks

 

HKS are rebadget Densos iridium series (IK20, 22, 24 etc).
NGK has a new iridium series for our cars and STI spark plugs for new age cars aren't PFR7Bs as before but iridium BKR7EIXs gapped at 0,6mm!
NGK has also a new type copper spark plug (type V electrode) that works much better than anything else according to our friends in Nasioc (copper has much better conductivity than most metals) but can't say for sure cause I haven't tried them yet and they need frequently changes.
Next change in my WRX03 PPP will be the BKR7EIXs gapped exactly as the STIs, even a friend with very high boost in his STI8 told me the difference is remarkable at low speed/part throttle conditions.
JIM