On both sides, where the exhaust-tube from the cat enters the muffler (sorry, I believe this is the US term, I don't know the British one...). According to my dealer the factory used thinner material as before for my version of the Stage 1 kit.


Last edited by kwb; 18/10/18 11:36 AM. Reason: additional info regarding my earlier answer

Karl
Life is hard in the mountains

2009 silver +4, 2013 red C4P, 2014 yellow M3W gone to a new owner