I noticed that all new Hondas do NOT have mudflaps. A friend of mine said it is due to the aerodynamic drag caused by mudflaps. Honda is known for doing a ton of "little things" to help with mpg.

So, do we think that removing mudflaps will help with reducing aerodynamic drag?

When I was looking to buy a new civic a few months ago they wanted 80 bucks for mudflaps and had them preinstalled on all the cars. -_^

I would think that since it is behind a wheel/tire and to a lesser degree, that they are underneath the car, the exposure to airflow is minimal. Not enough to really impact the actual mpg.
I'm guessing though...
I have a brand new OEM set I'd like to eventually put on my CRX. Got them off Ebay for $26. Take that! You money gouging dealership.

I took mine off. I don't like how they look. Plus weight and air drag might give you .00000001 less mpg.

but the huge mudflaps on trucks cant be good for mpg.

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2008 EPA adjusted:
http://www.gassavers.org/gaslog/sig.php?id=249
http://www.gassavers.org/gaslog/sig.php?id=414
Distance traveled by bicycle in 2007= 1,830ish miles
Average commute speed=25mph (yes, that's in a car)

Stock Civic VX came with mudflaps all around. Aparently they're a hot commodity because I've had offers to take them off my hand. I eventually pulled them off myself and on a shelf in my shop they sit. I'll probably let them roll with the chassis when I sell it.

In taht case I'm off to the junkyard today to get the mudflaps from that VX shell just sitting there.

Boy I wish I'd seen that before it was torn apart.

Crap, I should have checked for rims... how could I have forgotten that? ARGH

At least I got all of the plugs off of it though.

Haha, I was going to ask you to buy me some rims when you first mentioned the vx, but then I realized I just bought some new tires so blah.