Spark Plug Options for an Aston Martin DB9

I was changing the spark plugs in my 2005 Aston Martin DB9 Coupe and wanted to find out if there were alternatives to the very expensive plugs sold by Aston Martin. What I found was the original plugs were made by NGK, and in the video I unravel the specification of them and find the modern and improved versions that you can buy for one third of the price. More information can be found on my companion blog at http://www.Aston1936.com For the original 450 bhp engines: The original Spark Plugs are the NGK PTR6E-13 The upgraded Iridium plugs are NGK ITR6F-13 and are available on Amazon here - https://amzn.to/3KheqGV If you have the higher power 470+ bhp engines in the later model DB9, Rapide, DBS, V12 Vantage, Virage and perhaps the Vanquish, the plugs are: The original plugs are NGH PTR7E-13 The upgraded Iridium plugs are NGK SITR7A-11G You can (and should) verify the options for your specific year and model on the NGK parts finder website https://www.ngkpartfinder.co.uk/catal... 0:00 Introduction 1:05 Original Spark Plugs and Specifications for 450 bhp cars 5:44 Alternative NGK Spark Plugs for 450 bhp cars 7:45 Original Spark Plugs for Higher Power Engines 9:29 Alternative NGK Spark Plugs for Higher Power Engines 11:03 My Choice #Aston1936 #AstonMartin #V12 #DB9 #Vantage #DBS #Rapide #Virage #Vanquish #astonmartindb9 #NGK #SparkPlug #Iridium #Platinum