Has anyone done a set up with another brand turbo in recent times? I am looking to do a Precision turbo setup, wondering if the ZZP manifold would work in this application? Also would the turbo swap downpipe they provide in the S257 kit they do be close to what I need? Of course I would need to do the waste gate and blow off valve as well as the intake, drain ect. Anything else I might get surprised with? Hoping someone in the know will chirp in, my 7163 is wore out and want to do something different

 

Assuming you can get the turbo you want in the T3 flange, the zzp exhaust manifold should work.

I'd look at the dimension drawings of the s257 and compare them to the Precision turbo you want to run to determine if the downpipe will work.

I can't think of anything else you would need from your list.