Quote:
Originally Posted by boostm3
Ive got a friend with an N54 335i who just told me he just took a 65 mile trip, and with his dual cone intake, averaged 34 mpg for the trip using highways! I, with my bone stock N55 135i averaged, at my best, 28.3 miles over a 200 mile distance using all highways.
I thought that if intakes work, they provide more air flow to the engine for which the ECU, in turn, orders up more fuel to keep the mixture from leaning out under the added air assault, resulting in worse gas mileage, not better.
Does what he told me make any sense??
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no, he either lied to you or had a tailwind of 40+ mph the whole way.