Wow that looks like a pretty sick haro.
Here's a link to the bike.
http://www.harobikes.com/bmx/tab2_subNav3.php
So i would take the front brake off, if you don't really use your brakes, take your rear off to.
If you want to spend some money and lose some weight get pivotal seat/post.
Haro pedals are so bad, get some plastics.
That's all i can think of that is pretty cheap.