Who's downpipe does this appear to be? ATR, Houston, ?

[olds443]

For my own entertaiment and curiousity as well as plans going forward, what down pipe do I appear to have here?
I thought it was a Terry Houston .
I bought it on here almost 10 yrs ago but can't find info, of course seller could have been wrong too.. I did buy an ATR exhaust from him too so maybe?...
It is painted over stainless and seems to swing a little wider over the from cyl. I have a set of ATR headers I was thinking of using and this looks like it will clear... I'm going to try them out later.
Also I noticed the flange has a tiny dimple near the forward bolt and the puck swing arm has the ends cut at angles. I read on here that was something ATR did
And I did notice I need to have the crack welded at the elbow. Looks like the dp hit the frame before I replaced the body mounts and it's old lol

 

[1KWIKSIX]

By looking at the flange thickness and shape, doesn't look like an ATR (to me.) Appears to be a THDP or knock off.
If your downpipe swings out further than a standard (you'll see it almost hits the plastic inner fender well) , then it should fit ATR / Kenne Bell headers.
My previous down pipe fit ATR / KB headers and it clearly melted a wide strip out of the inner fender well cause it was so close.