Discharging Wastegates outside of the exhaust system

[twinturbo69]

I am working on the hot side of my exhaust and curious how many turbo guys have vented their wastegates outside of their exhaust system (i.e. routed a small tube from the wastegate directly to the ambient air)? Its a very tight fit for me to route them back to my down pipes and considering dumping them directly outside of the engine bay, but curious if there are any disadvantages to taking this route (such as excessive noise)? I have seen this done on race cars but not on street cars.