Hi guys,
I'm very new to this, but wanted to upgrade my stock s4 to a (stage 3) setup and tune it my self.
I have gotten stuck at the part throttle surge that happens between 5-8psi (the difference in wastegate pressure)
It also as rolling the throttle on get this instant rush of power.

After many hours of reading previous threads people talk about redefine the pressure ratio table to suit in the KFVPDKSE/D.

But also people talk about LDRPLS base pressure ratio?
I cant work out what you all mean by this as I cant find anything in M box definitions, as well as a lot of other acronyms.

appreciate any help.