Re: Best price ($10.20 each) on OEM NGK IFR6D10 plugs for SRT6 from unlikely source
The Iridium Ix plugs are leaps and bounds better then the OEM plugs.
Once you do a plug change you'll see what I mean. This is one of the few MUST DO mods on these cars, swap out to Iridium Ix or Denso.