Ben;
    I noticed one of the engines was an 05+ with electronic throttle.
    I haven't tried one of the electronic throttle engines yet.  Supposedly
they have 172 hp.  Does it feel any different power-wise?  Any difference in
gas mileage?
    I have been trying to find what part of the exhaust gave me 2mpg better.
 I thought it was the muffler, so I changed that first.  My mileage went
back down.  I will now try the GOOD muffler and an EMICO cat, and see how
the mileage does.  My guess is it will go back up.

    John