Was just out for a spirited drive when underboost all died.
Managed to get her going again but runs really rough popping and banging befor stalling. Wont rev above 3k even struggles to get that far.
No check engine light at all.
Looked under bonnet to find samco between throttle body and intercooler had come adrift. Put it back on and still runs rough then stalls

Any ideas

 

Check all your inlet path for air leaks and the samco is not torn. Sounds like some piping is loose elsewhere on the intercooler hence the popping and banging