I plan to make a belly plan for my civic. And cover as much of the underbody as i can.
I am also interested in trimming up the rear bumper to clear up airflow.
I was wondering if you guys had any thoughts on rear diffusers? The website varisusa.com makes some. They are expensive, But i would like to try and make my own if it would even be worth it.
I would like to trim out the rear bumper and install something like this
Center Rear Diffuser
The company also makes Vortex generators that bolt onto the sides of the rear bumper cover.
Both parts installed
Just curious to everyones thoughts.
If you feel it would be a good thing, help me come up with an idea on how to make something like this.
FormulaTwo 
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