Sounds like you got a tornado coming on every time you press the go pedal... Maybe you could get the car on jack stands and trace out that rattle . May just be a loose heat shield on the cat...

Yea I'm have to

Sounds like it only happens while moving. Brake rotors/pads/pad wear indicator metal strip? Wheel bearing?

If its awd if could be the driveshaft or related components seizing up.

No it a fwd gst I got it on stands and looked under her for a bit before the sun when down and it's not any heat plate from what I can see seem fine but I had my buddy rev it with i was under the car and the rattling was coming from the transmission put my hand to it and it was vibrating idk what that could be or if my pulleys could vibrate it that much but I had him rev it up and I went to both side and the sound was louder on the passenger side where the tanny is but I'm at a lost as to what that could be

Your profile says ...Rebuild trans with a evo 5 gear extension... If this is true and the rattle sounds louder on passenger side I believe you need a new clutch .

Wouldn't I have problems with ingadgeing it thou seem fine thou idk drives and goes in to gear alright for the moment

If you are not sure my friend you should have a professional look at it before you go on your trip . Some shops will have a look at no charge.. I wish you luck