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
Well turns out I'm gonna be needing a new pair of front rotors. Currently have Endless 6pots up front with the 355mm. I had previously asked around for prices maybe a year ago and they were in the RM3k range per pair...