Oil cooler pipes

M20x1.5 to 1/2" BSP fittings from

1/2" BSP to 1/2" hose tail, from ebay

Mocal push-on oil hose, 1/2" bore from ebay

1/2" hose tail again

1/2" tap connector from Screwfix

1/2" copper plumbing pipes (!) to more tap connectors

5/8" (cooler) to 1/2" adaptors from ebay I think.

Sprayed matt black to look less home made...

From Zero 020511