Spark Plug for 4AGE BT 20v engine is IK20.
For further information, u may refer this website
http://www.globaldenso.com/en/products/aftermarket/plug/basic_knowledge/heatrange/index.html
Just sprayed my engine chrome today..the color is not bad...haven't heat the engine enough to test yet. Want to let it fully dried first... :ph34r: ...
This is the original camcover...surrounded by newspaper!! :ph34r: