Why is the 2012 rated 2mpg higher than 2011

[cougar65]

And below. Is it a tire difference or did the body change effect the aerodynamics?

[malibuguy]

Probably cuz they have more prius' they rather sell you. Before there was only one...so they rated the yaris low mpg to try to get people in the prius.

[b20vteg]

from what i've read, it's due to better aerodynamics... :iono:

[TLyttle]

Quite likely, b20vteg. It doesn't take a lot to change the aerodynamics, and the results are often dramatic. All one has to do is follow F1 to learn that...

[tooter]

It just might be the 2012's new exhaust manifold design... :wink:

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_5914.jpg

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_5915.jpg

[Astroman]

Wow that is different!

[Yaristeve]

It just might be the 2012's new exhaust manifold design... :wink:

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_5914.jpg

http://i17.photobucket.com/albums/b90/compost_bin/car/IMG_5915.jpg

Oooooooo... Will that retrofit as a straight bolt on to the 2011? In the Miata world, a popular mod is to retrofit a 2001 tubular exhaust manifold for the 99-00 cast iron manifold. Works about as good as an aftermarket header but looks bone stock to the inspectors.

[tooter]

Yes, it will.

I know because I had replaced it with a Weapon R header that was listed for 2007-2011 models and it fit perfectly.

[Yaristeve]

Yes, it will.

I know because I had replaced it with a Weapon R header that was listed for 2007-2011 models and it fit perfectly.

Hmmmm... You "had" replaced it? Do still have it? For sale?