Few S12 related questions

[Super Ace-K]

Alright lads, well I was just wondering a few things about mods I have planned. Currently the mission is to have the S12 restored with the full jdm look. Already have a few items imported waiting to go onto the car XD but my main questions are relating to the exhaust and manual e.c.u. Was wondering whats my best option for exhaust, to just get a custom stainless one made up or try and get a branded one, e.g hks or something? Next question is about swapping car to manual, got everything I need sitting in the house but was wondering what does the S12 drive like in manual relating to the turbo? Does it just kick in at certain revs 3000/4000?

P.S meant to ask about coilovers for the S12 aswell. I think the fronts are pretty straight forward as you basically replace everything with s13 parts then the coils will fit but curious about the rear with our unique set up. I know its been done by other guys but wondering if anyone local knew about it.

Cheers!

Chris