need info. on plugs

[blnpny]

just ordered some plugs densos' they're IT20's. Is this the write plugs for my04 ? I thought my 03 had IT22 in it.

Whats the difference and will they work????????

 

[ALA G8R]

IT20s are one heat range colder than the stock 22FM1 Motorcraft plugs. They are the right Denso plug for stock boost up to around 13lbs.

 

[blnpny]

so if i add a 2.8 pully would they still work or should i get something else?

 

[ALA G8R]

Originally posted by blnpny
so if i add a 2.8 pully would they still work or should i get something else?

With a 2.8 you'd be better off with IT22's. One heat range colder than IT20's. Although IT20's would work if you're not constantly doing WOT runs.