Now onto Alfa No 2
Join Date: Sep 2009
Location: United Kingdom
Advantages of Iridium spark plug types
Because of the properties of Iridium, the spark plugs centre electrode can be made with a much smaller diameter than with platinum types (0.8mm), Gold or gold palladium and copper/nickel types. This means that spark plugs potential difference is more concentrated and hence less 'spark jump' voltage is required - this can be as much as 5,000 volts less than with standard plug types. Ignition is improved and less strain is placed on the ignition system. Benefits of improved ignition/combustion include better fuel economy, increased power/acceleration and especially better throttle response.
Credit to sparkplugs.co.uk
Funny thing is in there plug finder the iridium ix plugs CR7EIX-BKR6EIX are cheeper at 55.20 + vat
Than BKR6EKPA-PMR7A at 69.84 + vat or 65 +vat on there home page.
I don't know maybe there is no improvement but if they say they are better you cant have reason to disbelieve them or can you....