Most cost effective HP+ modifications?

[Mrmaddbrad]

Most cost affective? Take **************** out... Enough said.

See that spare tire? Get rid of it... Have your bowling ball/ golf clubs from last weekend still in there? Take them out.

50lbs doesn't sound like much, but if you pull out that much, or more, I promise you'll feel the difference. When you go to the gas station from an empty tank to a full tank, i know i can feel the difference. 10 gal of gas is only 80lbs. Now take that to perspective when you take out another 100lbs

And for how much? FREE! Unitl you get serious and start putting on light weight wheels/seat/steering wheel/ battery/ etc.

[Ghostrider 310]

An Underpully is a mod you truly feel, I don't know how it would be in a place like Az where you need max AC but other than that you truly feel the difference.