OBP Dark Matter Header Tank - Option 1

Optimum Balance Products (OBP) continue their range of high quality and functional alloy products with these 'Dark Matter' alloy water header tanks. Dark Matter is a Matt black coating which is hard wearing and resistant to petrol, oils, acid and alkali. This makes it ideal for use in competition engine bays which are subjected to the harshest of conditions.Ideal for bespoke coolant systems in Motorsport applicationsCoated in 'Dark Matter' for a long lasting great looking Matt black finishAircraft grade aluminium construction which is pressure pressure tested for quality assurance.Tanks accept standard size radiator cap (not included)Designed to meet requirements of serious competitors and enthusiasts alike, the header tanks have been developed to be installed in bespoke, one off or competition installations where original header tanks are not suitable. At home on the track or for fast road use, the header tanks are manufactured to the usual highest OBP quality with suitable inlets and outlets with a choice of shape suiting most requirements. The Header Tanks include either a standard radiator type cap fitting (cap not included) or a screw cap.OBP header tanks retain low weight as they are manufactured to just 2mm thick yet have also been designed to ensure the demands of competition and performance applications are met and exceeded.Options:Option 1: Cylindrical, 200x100mm, approx 2 Litre capacity - Horizontal Mount - 10mm Outlet - 18mm Inlet - 8mm overflow - radiator cap filler (not included).Option 2: Cylindrical, 200x100mm approx 2 Litre capacity - Vertical Mount - 10mm Outlet - 18mm Inlet - 8mm overflow - radiator cap filler (not included).Option 3: Square, 150mmx150mm 3.3 Litre capacity - 10mm Inlet and 10mm Outlet (barbed male ends) - radiator cap filler (not included).