Replacement radiator hoses - clam off?

I’ve had a slight leak around the coolant hoses to the radiator for a bit now - Although I’ve tightened the jubilee up, it still leaks slightly. Probably just needs a new jubilee clip, but I decided anyway to purchase some Forge Motorsport pipes to make double sure.

Admittedly I’ve not looked properly yet…but does anybody know if the front clam need to come off to replace the hoses, or can it be done through the wheelarch?