38mm Wastegate Dump Tube??

[tsi1991awd]

For a manifold mounted 38mm wastegate, what type of flexible tubing can be used as a dump tube?

Actually, what type of tubing is this?
Jay Racing Front Wastegate Dump Kit, Flames Design, LEFT [FWD1-LK] - $115.00 : Jay Racing

 

[LiquidX]

It's standard exhaust flex tubing. You should be able to find it at Autozone or Napa.
3/4 the way down
RRE Exhaust System Parts