Hello everyone, I'm in midst of a beautiful SPM "Street" downpipe install on my CCTA TSi. I have the stock downpipe out and I'm connecting my O2 sensors but I have 2 bungs by the catalytic converter and one up by the turbo so to speak. I didn't notice that the stock dp only had 2 sensors total until I had pulled it out lol :bonk: Anyway, does it matter which way the cat is connected to the rest of the SPM dp? I know the sensor has to be behind the cat, obviously but do I do anything else with the bung in front of the cat? I assume the other is for the Cali spec GTI. Oh and I assume I reuse the OEM gasket to the turbo right? To recap, I have the middle O2 sensor connected to the bung behind the cat, the bung in front of the cat is sealed off like it came and I have the upper sensor connected to the bung by the turbo flange. Do I need to lubricate the v-band clamps with anything? How tight do the v-band clamps have to be, any torque specs? Thanks!