Sorta. The higher the compression, the colder the plug, as a general rule. in other words, you don't want a plug that puts a lot of heat into the cylinder head (and combustion chamber) on a high compression engine, like a hot plug would tend to do. Saying the a cold plug is better for a performance engine is a little broad, since a low compression engine CAN also be a performance engine if built for it. In that case, the performance engine would not need a colder than normal plug. It's compresseion dependent. If that makes sense.
