Hey all, new to the forum and the Audi world. Been looking at an s4 for years and finally got one. Great condition but its got 80k miles. Im not familiar with the reliability of these engines. I was thinking about getting the ECM chip from APR running 1bar, will I be okay? Their stage 2 kit runs 14psi, is that too much? What will I, should I replace to make sure nothing goes wrong? timing belt? fuel mods? All service was done on the motor and it runs great, i replaced every fluid when I got the car. I was going to do the chip and intake. ne thoughts?

 

and to answer your question im running 18psi on stock k03's with giac