Quote Originally Posted by DennyW
If you by pass the air flow sensor, you are cheating yourself. What you need to do is get a bigger flow sensor, and change the chip. But now, we are getting into performance, over just good gas mileage performance. The reason I say that, is when you up the performance, you have a tendency to use the extra power there. Therefore, you lose the atemp for good mileage, and have switched to the performance mood. Refining what you have, and tuning what is there, is like blue printing. You get it to the best you can, highly tuned, and that will be your best spot. Dollar wise also.
nononono they customized the stock airbox by boreing holes in the bottom to increase air flow - for example you take the top off the air box pull out the filter and look inside the bottom looks like swiss cheese.