I have a 5000 that i have over spun, Ats says i need a 5000 with a wastgate. Any one have a 5000 with a wastegate or is this somthing new? Thanks for your help

i dont know if there is a waste gated K31 variants,,

other option is to put a custom waste gate in. that is time and $$$$$$$$

other is reduce you rpms

or get a bigger turbine housing for it