I used to have a hks cope dump on my 180, has an hks 2530 on it but dicided to change it because it was not 3" got an Flyn 3" dump frount pipe in one seen to go better with this pipe but have not had it dynoed yet.
Found out you can get turbo back Xforce exhaust for $680 for GTSt new can't go wrong with that looks like it should fit the 4door easly if not will be easy to make it fit.
They are good. I had a hks split on my 180sx then changed to the Flyin 3" one pice more offboost power due to being true 3" only thing ive seen is it spikes more but the EBC should fix that.
HI
My mate just got a 4door 32 and its stock. Looking at doing the exhaust first, do the 32gtst exhaust bolt onto the 4door? I would imagine other parts like FMIC kits are the same as 2door but un sure with the Exhaust???