The "E3" is another of a very long line of gymicky spark plug ideas...Whitney Fire Injectors, Split-Fire, E3...all the same stuff: lots of marketing, not much practical benefits.
Stick to something that's proven in the field such as Denso Iridium Power.
I use the Denso in everything I own, including my ZR-1. I've used the Denso IT-22 for about ten years in the LT5 with excellent results. You get better exposure of the spark to the air/fuel charge due to the 0.4mm center electrode and the cut-back ground strap. Iridium is more durable and has less resistance then platinum...probably why even GM went to iridium-tipped plugs on Corvette back in the early-'00s.