Hello everyone!

As the title says i'm riding the c5 2.5tdi audi. Year 1998. I would like to install boost gauge and I want something from the quality stuff like aem, greddy etc. But things went different and now i got a blitz sbc id which also do the gauge function. Anyway now I'm wondering how to set it up properly. What should i do with the stock boost controler n75 I believe. Should I bypass it or should I run connected with it? If bypass n75, how to do it properly? Maybe something more I mised. Thanks!