^^I say this a lot, but just to be sure:
If you use any kind of octane booster, then that's your problem. It cooks plugs. The shitty thing is that they will look fine (except for orangish brownish hue) when you take them out; but it will cause bucking/stumbling etc issues under boost & hard accel after it runs thru a bit... If so, run the car as close to empty as possible, fill her up with some 93; then change the plugs and NEVER use it again & you'll be golden.
Aside from that, the only two things I know about KA-t's are:
1. SHit
2. Squat
GL
