G
Guest
·My O2 sensor was touching my frame with my Zard full system. It broke the bung out of the exhaust. Hope it just happend to me but it might be worth checking. I had to cut 1/4 inch off the 3 int 1 section of header to make it fit after it had been welded back. It wasn't in the exact same place after being fixed. It was close when I installed it new but vibration must have done it in.