I just threw one on the 6.5 clone, it's got a purple spark, once i gap'd it a bit I noticed a pretty decent gain in power, just thought it was worth a mention.
Spark Plugs | Automotive Spark Plug | Motorcycle Spark Plugs | E3 Performance Spark Plugs
Spark Plugs | Automotive Spark Plug | Motorcycle Spark Plugs | E3 Performance Spark Plugs