So i put in ko3/ko4 hybrids on my 2000 s4. The car is chipped with the GIAC+ chip. Before the turbo swap i was making 17psi, now for some reason its going all the way to 25psi(possibly more, thats where my boost gauge stops) I know the wastegates are hooked up, i did not change anything else and i do not have any codes. Any advice to what could be causing that? I hope that its not that the wastegates arent adjusted properly...The 2 vacuum lines that run next to and underneath the Y-pipe, does that lead to the wastegates?

 

The wastegate could be broken...

 

Are the turbos fromBuehnengineering? I heard that it is common that the wastgates need to be tweaked on their turbos.

 

They are actually from ABT

 

Problem solved...thanks