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  1. VNCalais3800

    VN Calais 3.8 Backfiring After Coil Pack Changeover

    Hi all, Recently my VN Calais S1 has started to run like it was only firing on 3 or so cylinders (dont worry it has not left the shed). I replaced the coils with champion coils they cost me $58 each at repco. I also changed the spark plugs to the iridium/fusion ones cost me $140 at Supercheap...