Not a very interesting topic. I bought a set of these from Burton Power recently. Well over twice the price of a normal plug. Any good, tell the difference, worth the price?

Absolutely. My engine was less than totally smooth up to about 2800 revs and then was perfect. I put it down to it being a modified engine with rally cams fitted.

Smooth as anything now all the way through the rev range. In town traffic I am finding myself in one gear higher most of the time. Back of the packet states; lower fuel consumption, longer life, smoother engine running, improved ignition efficiency giving enhanced power and acceleration.

Well worth the money in my opinion.

Pete