Best way to add power to a 00' Dodge Durango?

[Wanna Race?]

I have a 2000 dodge durango and i currently have the following upgrades

-Superchips power programmer
-Custom intake
-poweraid throttle body spacer
-custome exhaust with cherry bomb
- K&N air filter

What would be the best/most effective way to add more power that would cost less than 100$ preferably i dont to spend a fortune im just looking for a little more power

 

[dakota97slowpar]

tune for Race gas and you will stay under budget. otherwise get the march underdrive pulley set