any one have fuel problem? cause my 2006 tsx have a high fuel consumption, no more than 21mpg even though on high way drive. btw, i did not change any other part of my car but add a 12" subwoofer which not affect fuel too much.

 

wow that does not sound good-the worst MPG for me was 23. Mostly I average over 30MPG-mostly highway driving. (I try to use cruise control).

 

Might want to post this in the Gen 1 thread instead.