So, what do they do other then decrease intake air temps? More horsepower?

 

Keeps the incomeing air nice and cool. so u dnt lose hp.
Heatsoak--

 

O ok thanks,

 

i dont know exactly what ur asking but to go off of what Redss wrote......... cooler air going into the engine means denser air.......... which will contain more oxygen molecules, more o2 means a bigger boom when the air fuel mixture light off on the power stroke which ultimately means a few more ponies at the wheels.


mike