I have had this issue for about half a year now but have just recently started trying to fix it. I originally dealt with it by just turning boost down. About a month ago I tested the wires and the #1 wire was about 3700 with the #4 reading at over 8000. Today I received a new set of NGKs and it helped SO much. I finally got to crank it back up to 13-14PSI with a spike at about 15. Its fine so long as I'm easy getting into it at higher RPMs to keep the spike low but the popping is still far better than it was. After my first drive and a 20min cool down i checked the coils. Both read 1.0/17000 primary/secondary. After an hour cool they where still kinda sorta warm (yes that is a technical term) and read .9/14000. Finally after a 3 hour cool down on a 45 degree evening they where cold and read .9/12700. I have 2 questions, at what temperature is the resistance read and is this much variation based on temperature abnormal? My manual says .7 to .86/11700 to 56000 primary/secondary but says nothing about temperature. I'm skeptical to believe this because it also says 3000 to 22000 on the wires for the 4g63t.