i get them at trade for about $60.. if you go to supercheap etc and see a big bosch battery N53b (just an example) write down that number/modle, and i can see what i can do to get the equivilant battery at 1/4 the price still has a 2 year warrenty etc

back to the main topic, i think that if you like me, and you run your 4AGE with 30deg adv timing, and use BP ultimate fuel, and the motor hardley ever sees under 6000rpm i personally think there a good idea, upgrade your coil to people!! doesn't really matter what type, as long as it is an ELECTRONIC IGNITION COIL, the ignighter is a self learning type so i've heard !

Matty