The work for my 240sx powered w/ RB

[bluecivic]

Wow, dont see NEO's much. Especially in a clean Kouki.
I'd start with the basics and work your way up from there, of course.

1.Intake
2.Exhaust
3.Dump and downpipe
4.Injectors
5.Fuel pump
6.Boost increase
7.Get a GOOD tune on quality engine managment equipment

Not sure if a stock RB25 snail can support 400WHP reliably though, may want to invest in a stouter unit.

good idea thank for the help. But I did some research on the RB25 Neo. It got around 280hp and 300 ft-lbs or more i thing it can handle. But never know unless i try. Either blow the motor or good to go right LOL