Originally Posted by L33 BYT
Ah so if looking at an import is it advisable to think about remapping too.
If you're thinking about a classic shape 240ps or 260ps wrx you can get a plug in chip that is mapped for 95, inceases the boost, power & removes the top speed restrictor for around £190 from ScottT from polarperformance. My sister has the 260ps wrx and I fitted one of their chips to it a few months ago and it goes really well now and runs 1.1 bar instead of 0.9