hey i have a cold air intake system and i can make it longer or shorter. can anyone explain if it's short happens and if it's long what happens??

 

I could be wrong, but i believe if it's shorter, it will be louder and longer it'll be quieter

 

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One places the filter in the engine bay (short ram), and the other puts the filter in the wheel well.

Air in the wheel well (under the car etc) is colder/denser than the air in the engine bay. the denser the air, the more power you can potentially get. However, you will get maybe 1 extra hp (if that) with a cold air intake compared to the short ram. Also, the cold air intake set-up runs into issues if you hit deep water puddles. Submerge that filter in water and kiss your motor good bye basically.