Going to get my car mapped soon and wondered what plugs i should get .
Spec
2003 uk sti ppp
md321t,harveys ported headers and matched upipe.
all the usual ppp fuel pump, sports cat downpipe an back box.
standard bore straight through exhaust
720cc injectors.
k+n panel filter insert

 

pfr7b's

 

Thats what I use with no probs

 

Yip, thats what i fitted for the remap with andy forrest.

 

Agree with above, remember to gap them to 0.65 and all will be well.