Guys I want to get ECUTEK removed from my 2001 WRX,I had originally planned on just selling my current ECU and replacing it with a completely stock one but I spoke to the guy at JWS Wreckers in Wangara and he said you cant just pop in another ECU?.

Something to do with the immobiliser system on the ADM Subaru's,keys programed to your existing ecu?. How much am I likely to get charged to get the ECUTEK removed or is there in fact a way that I can buy a stock ECU and get it functioning right in my car?