Section 1 High Flow with Supercharger Boost

[BrelaM3]

Hey all I have a ESS 525 kit and right now I am catless with Agency Power Headers and stock section 1. I have been thinking about either getting Supersprint Section 1 with High Flow cats or Fabspeed Section 1 with high flow cats. I have seen that for N/A e46 it has been a good mod as it barely sacrifices any power. Does anybody know how much power loss I can expect to see with a supercharger installing high flow cats?

[jet_dogg]

Nobody knows with exacting precision but with high quality hjs race cats the loss is probably around 2% or so but take that with a grain of salt as nobody has empirical data confirming this.