Not sure which HKS it was but my mates old gtr 33 had one on and it was not that loud ,Apexi N1 is very damn loudI am looking for a exhaust system for my gtr r33, anyone of you who have some advices? APEXi N1 Exhaust or APEXi GT Spec? or should I go with Hks?
sorry my bad english.
from
Norway