I'm having a set of side diffusers made and can't decide on which design to go with. My options are straight or curved.
Pictured are the curved option. Thanx guys.

 

If you're having a hard time deciding, I'm assuming that means you like both equally. I'd just flip a coin and make a decision that way.
It's just as effective as making a poll on here and picking what ever ones other people like.
Personally judging by the pictures or the cruved ones you posted, there doesn't seem to be that much a a variation between straight and curved that it would make a difference for me.

 

I like curved better, gives it bit more "aero" look... but differences are minimal so either way

 

Straight. Curved doesn't match our body lines.

 

Curved. I have had both. Its gets old real fast getting out of the car and stepping on the diffuser