I have an 1993 v1 impreza wrx import. It has full exhaust and decat, td05 and panel filter. In cold weather it's overboosting. I don't want to spend silly money. I want smooth power delivery and a safe engine. I know about manual boost controllers but it's risky. I'd rather have a remap but I've been told only v4 onwards can be remapped. If this is the case why are some people claiming they are selling remapped v1-v3 ecu's? Please help clear this up. Thanks

You'd need a esl (www.enduringsolutions.co.uk) daughter board or a standalone apexi ecu or similar

As above really ! That's the best way depends on your budget really