Spark plugs
#3
Well it may be the 2.5 my 2.5 likes either Bosch platinum or Iridium fine point tried both no problems. When I rebuilt it 2 years back I used the Bosch platinum but wanted the Iridium again that's what I used before the rebuild. My Bosch Iridium are ready just haven't done the swap out yet a little bit of a pain replacing one plug behind the A/C compressor.
#5
i curently have e3's in mine (some one else bought for me) and it seems to like them.. went from 11 mph to 16 mph after they were installed (most that mph increase probably came from all the other tune up parts and replacing the stuck callipers lol) i do have a bran new set of champions to install 1 day