Very good. I'd add a few smaller things:
- You can extend the Kammback to the rear bumper. And paint the underside black to reduce glare in the rearview mirror.
- Remove the roof rails. They may or may not be worth much by themselves, but they disturb the airflow farther down the roofline, reducing the gains from the Kammy.
- Fold your passenger side mirror. It also spoils the airflow down the side of the car, all the way to the rear, as MetroMPG noticed in one of his tests. Add a wide-angle central mirror, and maybe an internal mirror on the passenger side (I have one but never remember to use it).
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread