Do I need clamps to install this hose?

Yes. This hose uses barbed fittings on both ends, so you'll need hose clamps sized for 2.25" and 2.75" diameter tubing to secure it properly. Stainless steel worm clamps are the standard choice.

Can I use this on both intercooler and coolant lines?

Yes. 3-ply silicone handles both boost and coolant applications. Just confirm your line pressures fall within silicone's rated range—intercooler setups typically sit well within limits, but double-check if you're running extreme boost levels.

Does the hose come pre-shaped or does it need heat-forming?

This is a straight reducer hose as shipped. If you need a bend, you can form it by carefully applying heat with a heat gun—silicone is flexible enough to shape without kinking the walls, but take your time to avoid sharp bends that restrict flow.