whatsup everyone, i have currently 26000 miles on my 03 Evo. Just wondering that do i need to change the Spark Plugs? I have changed my all DP, Mid pipe, and Exhaust, and intake, those simple tunning, but don't want to do anything with engine, so will it be changed-More powerful if i replace other kinds of Spark Plugs? thanks you!!!

 

sparl plugs are like oil you dont change them because you wan't more power , maybe a better spark, you change them because you need to , and yea i would change them if they were stock plugs for 26k i change mine every 5-6k pull them out and take a look at them and you should be able to tell if they need replacing