I think is about RM200++ new & ori from spare part shop.
What happen to your plug coil? I think my plug coil also got problem, my work shop told me that most of the time is the back 3 pcs. problem, I'll buy 1pc. to test, I think only 1pc. is problem.
I've come to realize that models in 2000 had the option for TRACTION CONTROL even for auto transmission. This is the info i gathered from Altezza club of Au/Nz...
I know not all of you are on drive-by-wire, but has anybody experience with a throttle controller, eg the Blitz throttle controller http://www.blitzpowerusa.com/products/throcon/throcon.html?