well it doesnt have an o2 housing, but i was just wondering if i needed one. my friend i just saw in the bank said his dad can make me a custom downpipe, so once i get the kit, ill drive the car to his house, we will take off the manifold, put the new manifold and turbo on there, and then make a DP for later when the kit officially gets put on... yay, im getting somewhere, i think this is the last part in the process.