I looked it up the difference is the ones I have are single spark vs Dual... I read some more on here and will be getting some dual NGK BKR5EKB-11
Thanks
I just bought a 98 T4R 3.4 5 speed last Friday to go with my 01 Tacoma DC 4x4 TRD.
The guy said it could use a tune up and had already bought 6 plugs.
It actually seems to run fine to me. Every once and awhile might get a little sputter under heaver acceleration but NO Check Engine Light...