Hi! I have a 2002 360 that I had fitted with the infamous Kressieg exhaust system. The shop I used recommended replacing the oem headers as well for the ultimate exhaust setup. I’m not sure of the brand of headers they installed, but they were fairly inexpensive and not one of the “big” names. Unfortunately, it really killed the sound and the exhaust pulses now “flutter” almost like the Subaru WRX characteristic sound. Im assuming the change came from the headers either not being “equal length” or a mismatch to the geometry of the Kressieg exhaust. I want to get that smooth f1 howl back and would prefer to get another design of header rather than reinstall the factory headers. Does anyone else have the Kressieg setup with headers that they would recommend? Thanks!