I'm fairly certain T7 will throw a CEL if you fit a blow-off valve that vents to atmosphere. OP, unless you can find someone that has one from a wrecked car, I don't think you will find anyone willing to part with their Forge DV. They are extremely well made little things and should outlast the car.
If you want to look around for a bargain on a new one, the Forge part # is FMCL007PA.