can I increase my fuel mileage?? I just purchased a 99 EB Expy with the 5.4L a4wd.
was wondering what you guys have done to increase performance and hopefully a bit of fuel economy.
I am getting 13-13.5 right now.
was wondering about a K&N cold air intake. performance chip, and possibly an exhaust.
can you guys that have done them tell me what differences you have seen with the K&N and a performance chip. I am not ready to drop much on exhaust right now.
THANKS!!!! |