Hey Guys,

I went to my local pep boys and told them i have a 05 Mitsubishi lancer evo8. After they searched their computers they came up with these NGK Iridium part number





Are these correct? I remember reading a post that showed a different item number. Want to make sure these are correct before i buy these.

let me know.
thx

 

Stock heat range for the VIII's is 7. It would appear they gave you spark plugs that are 2 heat ranges hotter. If you want to stick with Iridiums, you'll want to get BPR7EIX. A lot of people on the forums recommend going with the cheaper copper plugs, BPR7ES. You have to change them more often, but they are much cheaper and they work very well.

 

Well im going to get a tune in like two weeks and i wanted to change spark plugs before i get tuned. I would rather just install the iridium ones since i dont have to replace for a while. I heard they last longer, even tho they are 2 x's the price. So i should ask for BPR7EIX and install those correct? I don't need to do any gaping or anything correct?

 

What kind of mods and how much boost?

 

currently i have simple mods.
stock turbo
K&N Drop-In Air Filter
Evo 9 BOV
DC Sports 3-Inch Downpipe w/ Cat-Delete, Heat-Wrapped, and O2 bung
Helix 3-Inch Cat-Back Exhaust.
MUSE LICP
Walbro 255 Fuel Pump
Muse Ported Manifold
Ported Stock 02 Hosuing
Ported 10.5 Hotside

Planning to run at a min of 21 psi boost. Dont know if the tuner can go higher or not.

 

Yes, you'll want to get the BPR7EIX plugs. Iridium plugs usually come pre-gapped but checking them wouldn't hurt. That's the other downside to Iridium plugs; the tiny center electrode makes it difficult to gap them. You'll want a gap of around .026

 

K cool thx for the info. let me call them and see if they have them in stock.