Check the bottom of your header, a little above where it bolts up to the rest of the exhaust. There was noticeable rub marks on the header and the body of the car.
Originally Posted by corNIC
Well this very well might be my issue, can you advise where I need to check cause I'm not totally familiar with what the xpipe is etc. Thanks man!
2002 e46 M3 - Jasper Motor Werks Stage 3 kit (JMW Re-flash, JMW Headers, JMW X-Pipe), H&R Springs