I think you have very good intention to help you mate but unfortunately you mess up big time with this screamer by cutting off housing divider those dump screamer pipe are design to seal perfect and all of them are tested by me , also your mate have seen haw it fits on turbo housing and haw wastegate is working I have no idea why did you damage this pipe - you should call me first this way will save time and money of your mate So please don't tell me this pipe does not work if you not sure what you are doing