i have a HKS mild steel dump pipe. being an "old school" system, its of a "flat-plate" flange design. the flange and plate covering the wastegate port appears to be quite thick.

my questain is would it be worth getting a hole cut out of the flange plate, and modify it, so i end up with a divorced dump pipe (waste gate and exhaust turbine outlets kept separate, meeting together further down the dump pipe.)

who would be willing to do this kind of work?