Flash
The baffle is in the back of the hood air duct. Held into place by three small phillips head screws. Hard to get to-had to lay on my back in the motor compartment. It does restrict air to filters. I got caught a few times in rain with no water problems. No problems when I wash Viper - just careful not to hold hose near air opening - some stick a small towel in opening when washing car. Their is a couple of drain holes in bottom of factory air box.
The Pirelli tires are the non run flat PZero Rosso asimetrico high performance tire. Front is same size as stock but the rears are 355/25/19. With the low side wall these tires are about 1/2 " lower than stock. A sticky tire-rides very good. Wheel hop is gone but you can, when cold, make the tires spin especially with 3.55 gear. I like the tires -so much better than stock run flats.
Michelin does make(pilot sport)a non run flat in the same size as stock. Some go to the 18" or 20" rims ,and in doing so have more tire options ,but I wanted to keep my stock 5 spokes. Talk to Luke at tire rack or Jon at parts rack.