So I'm out right now swapping plugs, and I pull the old ones and compare the new ones I picked up (BOSCH IR #9603). Checked online to make sure the part number is correct, but these are ~.5" shorter than the OEM, is that even possible:





If I were to stop and think about it, is the spark even far enough in to ignite the fuel/air mixture?

 

Nevermind, just found out they have these incorrectly listed as the turbo model.

 

FYI, to anyone else who wants to replace their sparks plugs, the computer systems at NAPA, Pep Boys and Auto Zone do not have the right parts. All of them don't differentiate between 2.0 N/A and 2.0 Turbo. The listed spark plugs at all of them are for the N/A engines (they don't even have an EVO sub-model whats up with that?!?)

 

http://www.youtube.com/watch?v=3homm...eature=related

 

Were working on updating the computer systems

 

I love the cryptic third person references, haha!

 

Just for the record, our cars (and all Evo models as well) are very finicky when it comes to certain aftermarket spark plugs. Consider yourself warned...

 

Yeah, as long I have to order them I'm going to get the NGK's. I was just trying to go the local convenience route, oh well.

 

hi guys. i'm new here. just bought an 09 ralliart and wanted to replace the plugs. anyone have the correct part number and manufacture for the oem plug?

 

Don't bother with Auto Zone/Pep Boys/etc; they all share the same incorrect database for PN's.

 

i was looking at sparkplugs.com

they had plugs listed for L4 - 2.0L - FI - 4B11-T - GAS
but all they had were BOSCH plats. i'm doubting that that's what came stock

 

go to the lancershop.com and look for evo x oem spark plugs, thats your best bet. OEM ones are the best IMO...

 

x2 OEM is the best for Mitsu cars.

 

+3 on the OEM plugs.
Also the X plugs are a step colder than the RA plugs, so anyone looking to upgrade should definitely go with OEM X plugs.

 

I think early 2009 RA's ran X spark plugs but for some reason Mitsu switched to a hotter plug. If im not mistaken NGK ILKR7E6 = Late 2009 through 2011 Ralliart factory spark plug.


The step colder plugs that the X uses will help against spark blowout
NGK ILKR8E6 = Evo X factory Spark plug