Now, that's just manufacturing time, of course; but design time should be minimal since they're sure to just nick the ideas from the rich assortment found here.New Front wing(Multi-element) - 30 minutes
New Exhaust with ramp/tunnel(Like Redbull) - I'd have to guess 3 days, 4 hours, 16 minutes, 56 seconds
New Rear Wing - 5 days, assuming they work through lunch
New Floor - Couple of hours at most
new Side-pod design - 8 hour round trip flight to Maranello, 3 hour procurement 'visit', 30 minutes in the paint shop
New diffusor - They usually knit these from carbon filament to pass the time on the flight over
In other words: Seriously?