SDcamoXB

Im going to change mine soon, so I would like to know what people recommend. Thanks.

Sciond

Denso Irridium

frogbox

If you change the plugs regularely, go with stock( their cheaper).
Most dealers change them to Iridium @100k,as suggested in the owners manual

etarui

I'd stay with stock as well. I was considering this myself a while back, and ultimately went with OEM replacements. The increase in cost for higher-end plugs are not worth it IMHO. The only reason I would say to upgrade the plugs on an xB is if you have done heavy modifications like forced induction.

mrfuzzy4

yeah, spend that money someplace else. like synthetic oil if u believe it.

SDcamoXB

Cool thanks guys.

bB2NER

X2 plus gap them to .044". The NGK Irridiums raised my mpgs by 2-3, add power and provide a smoother idle. They cost more than OEMs but well worth the investment IMHO. Good luck!

ICE4ROG

I went to ngk.com, should I get the IX iridium plug (part number BKR5EIX; for a 2002 echo) or the Iridium plug (part number IFR5T11; for a 2002 echo)?
Another question: Ive seen some of your other posts about the gapping for the iridium plugs, ngk says gap at .32 and you suggest the .44, whats your angle on that? Thanks.

frogbox

get the bkr5eix, that is what the NGK people say. They also say gap to .44

Tomas

Only plugs that need the .044 gap are the Denso Iridium plugs because of their very different electrode shape.

bB2NER

Yeah, What Tomas said. I used the Densos not NGK (my bad) but yes my mpgs when up when I pulled them out and regapped them to.044.

ICE4ROG

Thanks Tomas, top notch info as always.

Thanks for clearing that up bB, getting the densos will be my next mod.