Much improved MPG by installing....

Gotcha! This article covers most of the gimmicks currently out there . Sorry if this has been posted before.

http://www.popularmechanics.com/automotive/new_cars/1802932.html?page=1

 

I haven't seen it posted here before.
It was a fun read!

 

OK, that is just funny.

"Now Featured in Popular Mechanics!!!"

 

I wish they had tested the K&N filters and cold air systems. However, it has been my experience on motorcycles that the K&N adds nothing in regards to power or increased MPG but it is worth the investment if you do a LOT of driving and/or intend to keep the vehicle for a long time. It took about 3-1/2 years for the K&N on my latest bike to pay for itself ($70). The OEM filter on my Honda Valkyrie is about $20 a pop

 

Wonder why they didn't mention headers?

Apparentley Downey off road has a set for the 4 banger that is suppose to be a simple bolt on installation. Minor mpg improvements and increase in horsepower.

May eventually go that route for the sound if nothing else.