i have a ep3 civic 2003 si hatch i want to swap my transmission on it. i want to put a rsx type s trans in it will it fit right in and will i need a gear box. im going 5 speed to a 6 speed lket me know what u guys know thx

 

There's this huge section called Honda Tech. They'd love to help you out there.
From the sound of your post, it doesn't sound like you are ready for the swap.
I also think the swap isn't worth the time/money if it's able to be done.

 

anyone