Which way to finish suspension parts - Powder coar or POR-15?

You may want to check this product out http://www.zerorust.com/, it also comes in a ton of colors including Mopar Primer. I have an aerosol can and a quart I am going to test. I read a few comparisons between Zero Rust and POR-15 and, I think they put them both in a salt spray cabinet and Zero Rust came out on top.

Ill let you know how it turns out.