Lot of guys get there boots here
Riffraff Diesel Performance Parts: - Intercooler Boots
swapping plastic CAC tube for metal CAC tube
Cold side $105.49 + shipping from Tousley Ford.
Part No. 6C3Z-6C640-AA, that includes the duct, both boots and all 4 clamps
"Ford has upgraded the boots, but not sure exactly how much better these are from the originals. You'd be looking at $39.56 and $44.98, and have plenty in stock (6C3Z-6A640-B for the straight one, 6C3Z-6C640-A for the angled one off of the turbo) It seems like the hot one off of the turbo is the first to go. These will not come with clamps, but most are able to reuse the old ones."