I just recieved my carsound cat from IPS racing today, and I noticed something about the o2 sensor bung that was different from my friend's carsound cat. The positioning of the bung is towards the rear of the cat, right next to the triangle flange of the cat. On my friend's carsound cat, his o2 sensor is placed right on the heat shield, closer to the front of the cat. Both my friend's catalytic converter and mine are for a 99-00 Civic Si. Is the positioning of the bung in the proper place? Here are some pictures of the cat. Thanks