The patented Splitfire "V" design on the side electrode is instrumental in helping to improve combustion efficiency. Because the flame kernel is not blocked by the side electrode as in other spark plugs, it can travel upward through the "V" notch into the combustion chamber. this exposes it to the air/fuel mixture to create a larger and more aggressive burn, thus reducing misfires. This results in more power, better fuel economy and better performance.

"Imagine our surprise when we saw immediate gains of 8hp!". MAX POWER

However we feel duty-bound to inform you that when we fitted a set we could not detect any improvement in BHP - but lots of people rave about them so we sell them!

Priced at £6.95 each. If you wish to order some please contact with your vehicle make & model, year, engine size.