It could... it "frees" up power so you engine does not have to work as hard, same thing with an intake. but the MPG increase will not be anywhere close to how much you spent.
but the best mod will be your foot. drive closer to 65MPH, don't use the AC below 50MPH roll the windows down instead. check your tire pressure and go with skinny tires next replacement. do regular maintenance, oil changes, spark plugs, etc. lowering may help a little bit in aerodynamics....
2001 ZX3 Zetec - Rebuild "The TICK" (
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2004 ZX5 SVT - Restoration "Code Name Rocket" (http://www.focusfanatics.com/forum/showthread.php?t=722698&referrerid=62897)