Hallo

I have a 98er WRX with open neck DP and decatet DP.

What can a make for more Spool?
bigger TMIC?
Boostcontroll?

They car whas stock.

I want a little bit quicker Spool/more hp.

The car can be not remap

 

believe the car can be remapped with teh addition to a daughter board on your ecu

anything which potentially increases spool will most likely require some form of remap for the earlier demand of fuel

 

yeah- Apexi ECU for you sir and a remap

 

You have probably lost a little lower down spool if anything by changing the down pipe and gettin shot of the cat with no map as your not utilising everything to their best. As mentioned above the car can be mapped but will need an esl daughter board I believe, there is not a great deal you can do to it without mapping in the changes, and if anything will more than likely cause you more problems than its worth if not done correctly fella