custom turbo kit questions

[billclinton]

1. I was wondering were i would go to get custom turbo piping made, i figure it would be an exhaust shop.

2. What would i tell the guy when he asks what i need, do i have to have measurements of the pipes and measure were the bends would be or could i just tell him what it has to connect to and were it has to go through and like the size of the pipes.

3. Anyone else have problems with realnissan.com, i have been sending them emails but never get a reaply. Anyone have good experiance with any other brand manifolds

4. Injectors : I want to upgrade to larger ones i read that i can use 300ZX twin turbo or SR20DET injectors, but do i have to change my ecu to use them?

5. What do you think the max boost i can run with SR20DET 370cc injectors, 300ZX twin turbo fuel pump, starion intercooler, 3" exhaust with no cat, performance intake filter, this is on a SOHC 1990 240SX on a turbo off a Z31 (T-3)