I don't tune ECUs, I just sell the hardware. Programs are free, but that isn't what your paying for. That said, there are some programs that work really well. For example, B14 370 injectors and DE maf- I own a B14 with this so guess what, this is a pretty decent program.
No, you can't use stock DE injectors.
Do this- use the stock DET injectors (370s), run them at 3bar (i.e. just use the stock fuel pressure regulator), use the stock DE maf. Sell the megan racing manifold, buy a bluebird or avenir manifold. Order basic board, ship me the ECU with order form. Fix any current problems with car, clean the heck out of your engine bay. Drill and tap block, build intercooler piping (or buy something), install turbo, use roller rocker metal exhaust gasket, don't ghetto rig anything, recirculate your bov (don't use chinese bov, just use a stock one). Change spark plugs to NGK copper DET plugs, gap them. Install new NGK plug wires. Install boost gauge. Don't install manual boost controller. After install pressure test, fix your leaks which you will have. Drive car. Check plugs for signs of detonation and color, and if you've got or can borrow a wideband check AFRs. Now install manual boost controller and raise boost to 10psi. Destroy tires.
