Boost shutting off

[nomad]

I have a 2018 stinger (JB4, intakes, cat back, Mishimoto ic and Ultimate Performance down/mid combo). The car ran fine until I had the downpipes installed. Now, when I step on it hard the boost cuts off. It doesn’t matter what map setting I use. Has anyone else had this problem!

is there any tune or mods that will fix this?

 

[TurboTx]

You might want to ask on the jb4 board. I believe there's a value in the settings you can adjust that will fix that.