Originally Posted by Tony the Tiger

we do know that wasted spark only gets half the charge time between firing cycles. However, the IS300's factory coil packs are just ****. I swapped my Supra TT coil packs onto my IS300 but still in wasted fire mode and the car gained 40 WHP on the dyno and I was able to widen my plug gap back to 0.030". All just from a coil pack swap with no changes in ignition dwell/charge times or plug change...