Hi Everybody:

I got a new header for my MY98 Turbo with some worries about its worth. Yesterday I tested the car and the results were pretty notorious. The car response from 4000 RPM is faster than before. Also I noticed the boost now have increased to 15 psi instead 13 which is the stock boost level.

Does anyone knows why this happens? Could it be problematic?

Regards from Chile

 

The headers are allowing your exhaust gas to exit more efficiently so your turbo can work better.
It would be wise to check your AFR. Do you have an AFR guage fitted?
A Knock Link would also help you protect your engine. It warns when you have preignition/detonation.