Which mods to make next?

[ECR033]

I've just recently purchased a R33 Series II GTS25t with the following mods - 3" exhaust from dump pipe, Mine's ECU, K&N panel filter and HD clutch (brass button apparantly). I would like the get a bit more power out of the car and I have $1k - $2k available to spend on the car at the moment. I was curious as to what you guys would suggest as the most beneficial mods I could make to the car within my budget for the moment.

Thanks

[JAPCAB]

Intercooler and boost controller, gapped spark plugs, upgraded fuel pump and regulator, and a dyno run.

[Guilt-Toy]

Front mount intercooler and a Power FC & Dyno

[400kwgtr]

yeah get one of those cheap as $400 front mounts. bargain