[Mr Jurassic]

i use denso IU27
You have to gap them your self
they run 1 heat range hotter.. but they are basically the same plug

 

[Mr Jurassic]

i run the denso iu27's with .065 gap and have really fucking awesome throttle response with my air to fuel ratio read out on the DDS of around 10

 

[Mr Jurassic]

ROFL i just did some research and relized my gap is double of what is recommended

 

[Mr Jurassic]

I retuned.... the ecu... it was dropping to much fuel for it...
I looked it up on the ECU with a DDS.... Now throttle response is outta this world
too bad the bike can barely start due to a bad sprag clutch...
sad to say its in the shop trying to get a sprag clutch warranteed
after 16,000miles