I've got a reliable 200KWaW with my setup atm.
* Scotty's dump pipe, with custom 3" exhaust, 100cell cat.
* Phenolic intake spacer..... 17mm or 19mm cant remember thickness (can get these off Jetwreck)
* HDI FMIC
* Air box opened up with Aftermarket filter (BNC) - most people won't run a oiled filter with a airflow meter because it will cause drama's but I've had no problem.
* Daleo's custom 2.5" suction pipe.
* Scotty's custom wastegate actuator (15psi preload)
* and you'll need a ECU/Piggy back system............. I've got the HKS F-Con V-pro but some use the E-manage with a Nismo or impul Ecu instead.
also you might want to think of some supporting mod's like:
Transgo Shift Kit, Mishimoto Radiator, Transcooler, Oil Cooler. and Scotty's Cooling Mod.
edit** also this still has the stock turbo, driveline stock besides shift kitted auto.
hope this helps.......... runs 98Ron 16PSI and made 204KWaW........ also ran a 13.9 down the quarter...... probably get more with the brake wire mod and making sure the gearbox is up to temp.