just wondering what everyone thinks/knows about these. i saw it on Horse Power on Spike TV, they did a nice dyno test with it.
http://www.fitchcatalyst.com/index.php
you can watch the test from Horse Power and check out reviews and such on their site.

 

"Increased Fuel Economy (averages 1 – 2.5 mpg)" -QUOTE from product site.

ummm this small amount could have changed because of:

-Humidity/weather
-driving habits
-weight/passengers
-winds
- ect...

i have deep skepticism of products such as these

 

If you want better fuel economy get one of these bad boys:



Otherwise just stop driving like a cünt and relax.

There are forums on how to drive a car more efficiently. They call it "hypermiling"
reference:

http://www.hypermiling.com/phpBB3/index.php

See "techniques."

On a tangental note, Honda-Tech's new software/owners suck fat fücking ****** for censoring the words I want to use.
It is not their place to homogenise the language of its users to something less offensive to oversensitive wusses and
let slide the bullshit "leetspeak" that's bastardising the English language. [/soapbox]