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691 Posts
Why is the HR16 header that OBX currently offers a true 4-2-1 header whereas the MR headers are merely optimized stock headers? I noticed the bolt patterns are the same, so if the runners are the same diameters i'd rather take an HR16 header to put on my MR.
Product Name - OBX Racing Sports
The runners are way longer. The only thing i have a problem with is the placement of the (true) O2 sensor in one single runner.
Product Name - OBX Racing Sports
The runners are way longer. The only thing i have a problem with is the placement of the (true) O2 sensor in one single runner.