On my LS1 I just pulled it and bolted on a flange that capped it off. At the time I was in a car club and had access to several people who tuned them so getting someone to "remove" it from the PCM wasn't hard. I know nothing about tuning so don't know what it entails. Actually, I don't even know if flashing the PCM is how it's done. I just know it can be.