Just my opinion, I would not use a mandrel bent crossover pipe on stock headers with only minor mods?
Especially on a rather small turbo, the exhaust gas must have enough velocity when it joins the pass side header and encounters the turbo exhaust wheel.
We have experimented with many header designs and to achieve good street manners and quick spooling, there must enough gas velocity preesent.
Notice a stock crossover pipe has an area that is necked down for that reason.
Bigger is NOT always better!