Not at this time JT, I have talked to a few people about it but it seems that I have to find someone willing to bring in a decent qty of plugs,due to variations in threads on each cylinder and plug, and allow me to return the left over plugs once I've found 8 good to go. I have been signed up for the local dyno day saturday and am looking pretty much for any changes I can make short of component changes, to win a little bet among friends. Last time out I was 291/317...since added the electric fan and switched to the optional 94 octane program on my SCT chip (adding aprox 2 degrees through out the curve), I'm hoping with these additions and MAYBE a touch from the improved spark, I can hit the 300 we are wagering on. I'll let you know what the outcome is either way.