Do I need clamps to install this hose?

Clamps are not included with this hose. You'll need to source spring clamps or worm-drive clamps that match your 3.00" barb diameter — most builders use stainless steel worm-drives to avoid corrosion.

Can this hose handle coolant loops and intercooler setups?

Silicone handles both. It's rated for continuous coolant circulation and boost pressure cycles without degradation, so it works for radiator feeds, heater lines, and turbo/supercharger applications.

Will this fit my existing hose routing without modification?

The 90-degree bend is fixed, so test-fit first. If your run needs a different angle or radius, you may need a straight section or multi-piece setup instead of this single elbow.