Are E3s worth it?

Like the earlier "split-fire" plugs, you probably won't see them in 5 years. I recall those ads claimed they ran original plugs on a dyno, then split-fire plugs and measured an increase in HP and torque. Gee, the engine was cold in the first run and performed better in the 2nd run. No lie in the ad. Don't waste your money on "fully synthetic" brake fluid either. All brake fluids are synthetic. Finally, what is Techron made of?