The BorgWarner S500SX turbo is a popular upgrade for CAT (and others!) customers looking to make BIG POWER. Whats not popular, is the flat face v-band outlet that the S400 uses. The more common connection that most heavy duty diesel engines utilize is the full marmot flange. AKA - the flange that every single turbo cat and detroit series 60 uses.
So instead of hacking your downpipe up to weld a v-band flange on, you can use this bolt on adapter that turns the flat face v-band into the common full marmon style flange.
Kit includes adapter flange, and v-band clamp to mount adapter to S500 turbine housing. You will need to reuse your current downpipes clamp.
*Exhaust outlet not included, for illustration purposes only