haveing a apexi fc put on today on a type r only mods r a de cat and trust 80mm all way through system????
about 300 bhp i hope
ATFW 300 probably about right.are you having it mapped as well? Before going too far on bhp need to look at fueling with bigger pump & injectors
yes getting fitted and mapped for the decat
apperently de cats can give up to 40 bhp more i heard