Had my original plugs replaced at 110K at independent shop. Now 220K on my 2005 CE. Want to try DIY this time. Manual calls for NGK iFR5-A11 iridium tip. Local parts stores have NGK iFR5T11. is this the same plug? Also, what sockets needed to remove engine cover and what readings on a multimeter should I get if the coils are normal. Thanks for everyone's help.