We don't make a downpipe with an EGT adapter, as Dan said, it'd be pretty much useless. Maybe you're confused with the PDE up-pipe, as it's available with an auxillary EGT bung for either a Greddy or Autometer EGT gauge as a special order.
If you decide to purchase our downpipe, send me a PM or an email with your location and I'll give you the info on your closest PDE distributor to help save on the shipping costs. We have 23 distributors nationwide stocking Subaru parts, so there's bound to be one near you.
Feel free to contact me directly with any other questions you may have.