Getting ready to swap out to AFE Pro Dry filter... quick question.

I searched a little, but didn't see a definitive answer. Do you remove the secondary filter or not? Are there any adverse effects to not running the secondary filter?

Will I see much difference in just swapping out the main and leaving the secondary filter or do you have to remove it as well for gains?

 

Thanks for the quick response, I will just do that then.

 

I kept my secondary filter in. Really no point taking it out. Have the AFE pro dry filter as well. Didn't notice any difference with it but at least I don't need to buy any filters in the future.

 

Same...haven't noticed any difference in regards to throttle response or mileage, but at least I'm no longer buying filters.