What am I looking at

an aftermarket alternator on a fwd 4 cylinder automobile.

>>17358788
That's an alternator

Alternator with a cooling duct directly from your ECU filter.

A radiator warmer. Uses exhaust gasses to warm up a big metal snail. Radiating heat, it ensures your coolant warms up faster, this helps mainly in winter, so your car wont stutter the first few minutes of driving. Also an engine getting warmer faster means improved efficiency, thus better gas mileage and lower nocturnal emissions.

>>17358854
this

Metal and rubber

>>17358854
>nocturnal emissons
Lol. nice

>>17358854
On point