Quote:
Originally Posted by LeanBurn
Some stock air-boxes already have bell-mouths in them...like my Corolla...just saying.
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Newer cars will be harder to modify for better mpg? Car companies now have developed a lot of those things that "if it worked the car companies would already being doing it".
My 03 Focus still had restricted flow even with the front nozzle removed and the resonator removed...aside from the straight edged pipe.
Cars below are capable of over 47 mpg on the highway.....
