Hi Octane Racing - 90 Degree Swivel Fitting
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HOW TO INSTALL HI OCTANE RACING 90 DEGREE SWIVEL FITTING
Before tightening the fitting into the Hi Octane Racing Head Drain you MUST lubricate the internal O-Ring marked by the arrow in the image below using WD-40 or similar.
![](https://www.hioctanedirect.com/assets/images/HOR90fitting%20Dom.jpg)