Welcome to the site!
It looks like it has Roush style side pipes, but the wheels look like they're from a 2005-later V6 and there's no other designation..... I don't think it's a Roush just going from this pic. Are there any other pics you can share, maybe we're not seeing something.
I also think (and I could be wrong....) that there's an indicator under the hood. This is my cousin's 07 (it's dead - long story....) - note the sticker on the radiator support cover.
It looks like it has Roush style side pipes, but the wheels look like they're from a 2005-later V6 and there's no other designation..... I don't think it's a Roush just going from this pic. Are there any other pics you can share, maybe we're not seeing something.
I also think (and I could be wrong....) that there's an indicator under the hood. This is my cousin's 07 (it's dead - long story....) - note the sticker on the radiator support cover.
Rear bumper just says “GT” not roush I don’t have any under the hood pics but I will check for that when i go to look at it thanksWelcome to the site!
It looks like it has Roush style side pipes, but the wheels look like they're from a 2005-later V6 and there's no other designation..... I don't think it's a Roush just going from this pic. Are there any other pics you can share, maybe we're not seeing something.
I also think (and I could be wrong....) that there's an indicator under the hood. This is my cousin's 07 (it's dead - long story....) - note the sticker on the radiator support cover.
I don't know what all Roush does with their cars, but this 07 has other stuff that's been branded, like the gauges.
Of course this is from a different model year and body style, maybe someone will be along and give you better tips than I can, but I'd think that there would be more evidence than the sidepipes.
One other thing that I think I notice from that pic is that the rear bumper doesn't have the Roush ground effects like I see in different Google pics, like this one for example.
If I had to guess, the seller (or a previous owner....) installed the side pipes on a run of the mill GT and called it a day.
Of course this is from a different model year and body style, maybe someone will be along and give you better tips than I can, but I'd think that there would be more evidence than the sidepipes.
One other thing that I think I notice from that pic is that the rear bumper doesn't have the Roush ground effects like I see in different Google pics, like this one for example.
If I had to guess, the seller (or a previous owner....) installed the side pipes on a run of the mill GT and called it a day.
Never thought of that.... here's this directly from their site. The site wants you to contact them to confirm the VIN though. 
roush.my.site.com
ROUSH Performance Help Center
even a 2000 Roush stage 1 should have the roush rear spoiler. That’s a stock 99/00 wing.
The only roush part I see from that one pic are the side skirts and exhaust. There should be a lot of roush branding on the car, especially the interior. I beeove the gauges will be white face and say Roush
The only roush part I see from that one pic are the side skirts and exhaust. There should be a lot of roush branding on the car, especially the interior. I beeove the gauges will be white face and say Roush
