np89 Posted September 26, 2012 Share Posted September 26, 2012 Hey guys, have read the spark plug guide and I have picked up that BKR7EIX is the plug to use for BPU on a J Spec, which I know are a good plug as I used to run them in my 200, however, something in the back of my mind says using iridium plugs has the downside of retaining heat and raising the chance of det (cant remember where I heard this), is this nonsense or are the copper plugs a better plug to use for this reason, allbeit with a closer change interval? Thanks Niall Link to comment Share on other sites More sharing options...
Geo Posted September 26, 2012 Share Posted September 26, 2012 there good to go mate, installed in mine a few weeks ago. All good for under the Hood. Link to comment Share on other sites More sharing options...
Dnk Posted September 27, 2012 Share Posted September 27, 2012 I've never had a problem with them, just don't pay silly money for them. Search ebay, amazon or look on http://www.sparkplugs.co.uk approx £6 each Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted September 27, 2012 Share Posted September 27, 2012 Apart from Iridium plugs being slightly more fragile under det conditions, the only difference is the service life. Oh! and the fact that they are more than quadruple the price of copper. Link to comment Share on other sites More sharing options...
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