| The main and pre-cats are gutted and I'm waiting to buy aftermarket test pipes after I get the turbos I want because I'm going to 3" and do not want to buy 4 bolt downpipes when I'm just going to have to change to a 5 bolt pattern. I want to get a wideband setup because I do have a lot of mods and a few of my injectors are flowing below the rated cc. I have 550s and the lowest flowing injector is 525. I also have an adjustable fpr and an apexi neo afc so I'm looking into ways to get my a/f dialed in a little better. And I don't know the specific bolt measurements for the aiv pipe mount or for an o2 sensor but I know the nut on the o2 sensor is 22mm and the nut on the aiv pipe is 24mm...if I remember correctly...which would make the threads for the o2 sensor m18, like you said, and the threads for the aiv pipe m20 since there is usually a 4mm difference in the head of the bolt/nut and the threads. I didn't think it was possible but was hoping someone might have tried it. Plus, assuming an o2 sensor would fit, I don't think it would sit far enough into the exhaust stream to get accurate readings anyway. So I guess the question now is how much do I need to turn up the fuel pressure to get those injectors flowing closer to 550?
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19:43:20 04/04/11
