Do I need hose clamps to install this?

Yes. Clamps are not included — you'll need band clamps or T-bolt clamps sized for 2.75" and 3.00" diameters to secure both ends.

Can I use this for both coolant and boost lines?

Silicone handles both temperatures and pressures well. Confirm your system's max pressure spec against the hose's rated range before install — silicone can weep at higher PSI if undersized.

Will this fit my existing hose routing without modification?

The 90-degree angle is fixed — test-fit it in your engine bay first to confirm clearance and that the bend direction matches your run. If you need a different angle, a straight reducer hose with separate 90-degree elbows might work better.