I ordered punishment racings 4 bolt 2.5in o2 housing. After ordering I received an email shortly after asking me what turbo and manifold I was using. I replied and about 7 days later it showed up. I am very impressed with the quality of this o2 housing. The welds look great. The best part is it fit perfectly to my garrett gt35 and my megan racing downpipe. I couldn't be any happier. I would recommend to anyone.
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