Blowsion Pro Water Bypass Fittings increase engine performance by diverting some of the water from the cylinder head to the bypass fitting, rather than forcing all of the water through the exhaust system. Fits 3/8" ID Cooling Hoses.
- Hose Diameter: 3/8" Inch
- Thread Length: 1/2" Inch
- Nut Width: 11/16" Inch
- NOTE: Install with 1/2" Inch Drill Bit