2004 GTO Spark Plug Questions, HELP!!!!
So i have a few questions about spark plugs, i'm so confused......
1) Is there a difference in the gap you use for an ls1 or an ls2, because i see .55 and .40 everywhere and don't know which one i should use for my stock 04 gto?
2) What is the difference between a NGK V-Power TR-5 Spark Plug, a NGK G-Power TR-55GP Spark Plug, and a NGK Iridium IX TR-55IX Spark Plug???
3) Which spark plug outa the ones above would be the best to use?
4) Is there any specific type of spark plugs and wires i should use with the 04 gto?
5) Where can i buy the spark plugs and the wires at the same place online?
Thats all the questions i can think of now, please help me, thank you!!