[El Duende]

Originally Posted by Bicycle Bob

Cold air intakes hurt mileage, if anything. Intake restriction does not matter at part throttle. Backpressure does hurt economy, but if your system does not choke at full power, it is probably fine in the economy range. There's a pulse plug thread around here somewhere, and lots of other good advice about how to drive for economy. Welcome to the lighter side of life.

How so?