Basically after some help as this is my first impreza.
The car has so far had
3 inch exhaust with de cats
Green panel filter
Re map
What other simple cheap mods are there

 

What Impreza is it?
What remap has it had/who did it?
What power is it running?

 

Go on a diert joking mate what year

 

It's a 2002 wrx
Remap done by zi motorsport
After mapping was only putting out 245bhp due to the up pipe which is being replaced

 

Uprated fuel pump,Walbro 255l/s or similar.

You should be able se around 280bhp on your setup.

From that point things a bit more expencive.......if you want more than 280 save cash for STI.

 

ah yes forgot to mention that had been done also.

is it worth putting the sti intercooler on?

 

not unless you plan on going over 300bhp but for that you will need sti pink injectors/bigger turbo

 

ATM you are on stage 1.
At 280 you max out your stock turbo.

For stage 2 you need FPR,vf34/35/43,STI TMIC.....330-350 bhp (but you will put a lot more stress on your gearbox +you will need better brakes and suspension).

I would got straight to STI as its much better platform to start with.