Pretty sure that’s not gonna work. Factory style turbo uses a round fire ring and vband clamp. https://www.focusst.org/threads/cus...-your-big-turbo-st-why-you-need-one-and-how-to-get-one-the-junits-elbow.166428/

This is meant for a different style turbo like the MRX setup from Mountune.

 

Not even close. If you read the thread that I sent you a link to yesterday and Mitch sent you a link to above, you'd see that just by looking at the pics. This elbow that you linked to is much longer, has a shallower angle, and the turbo flange on this one is a 4 bolt flange where the ATP kit uses a special tial Vband flange.

I don't know what your monumental hurry is to get this car built, but it would be massively beneficial if you slowed down, took a breath, and spent a few days searching and reading threads, take in info about this platform, and make an educated plan on how and when youre going to accomplish this. While this exact elbow hasn't been brought up before, I literally just explained this exact situation to a member about 2 weeks ago here, who was asking if an MRX elbow would work instead of the Junits. If you'd have read that response, gone back and looked at the pics on the Junits elbow thread, then looked at the pics of this elbow that you posted about here, you'd have come to the conclusion on your own.

Order the Junits elbow, be patient, and spend more time searching and reading instead of looking for quick answers. The information is all here for you to find.

 

Find ARC ENEMY FAB on Instagram or Facebook, that's how @michael_ST sells these elbows elsewhere.

 

To add onto @TurboGT's response, if you buy this elbow you linked instead of the elbow that Arc Enemy Fab makes it will not bolt up to an ATP supplied turbo. If you really were determined, that could be overcome by buying a 4 bolt flanged turbo, but the real and much more significant issue is that you will not be able to use any of the currently available downpipes for an ST. Not even the stock one. Youd have to have one custom made locally, and that would take a lot longer than a month.

That was the reason the junits/michael/turboGT elbow came into existence. It allowed a user to upgrade an ATP turbo kit by only replacing one part. Hit up Arc Enemy Fab on instagram, he'll get you in the queue to have the right elbow made.