hi to all sifus!have anyone tried to diy ignition coil booster?such example product like superspark, hks twin power. as i noe the ingredient is quite cheap less than 20bucks but sell at 1++ and inside is just 3 or 4capacitor and some resistor.seen a shop workers done before and selling over rm210.

and alot ppl said that it is effective because it will stabilise the ignition voltage.especially when air cond is turned on.