the 25% increase in hp should smell enough like bs to all of you 180*25=45
they claim it gains 45 freakin hp. snif snif, smells like bs, looks like bs, works like bs, guess what its BS!.
please do a search next time the only alternatives are
greedy emanage (piggy back)
split second ps1 (piggy back)
apexi power fc (standalone)
these are the ONLY alternatives that will work.
the most i've ever seen a celica make with tuning on the pfc n/a that is was no more than 15whp.