hello i was woundering what air intake i should run in northern wisconsin for winter. i have had stock on last couple winters just want to know if my aftermarket will be worst than stock when its 30 degrees to negative 30. want it to not be crazy hard to start or never warm up all the way like summer time temps. thanks for input

 

Down here in the Lone Star State I run the 6637 all the time.I have never read about the fellas up north changing from a 6637 in the winter?
I would you would be fine but I am not a cold weather driver.

 

i just figured the stock box will be little bit warmer air than wide open filter and cold cold air and cold cold fuel dont like to burn. but if you all says its good it will be good i dont want lose mpgs or abilty to start on a job

 

Don't worry about the mileage, if Wisconsin is like the communist state of California ( and a bunch of other states) they switch to a winter blend diesel which hurts mileage no matter what filter you run.

 

The 6637 will likely get slightly warmer air anyway...

 

cool ok sweet i can leave it on

 

I am your neighbor in the beauty of Michigan, the Thumb area. I run a 6637 all year round. No trouble starting or running. And no matter what you do you will lose mileage because here in Michigan we change the fuel and it does drop. From a summer normal of 20.8-21.5 down to the winter normal of around 18.7-20.1 that's the way it is.