Review on Injen SP1915P Polished Finish Intake by Brett Gilbert

Installation was incredibly easy. If you have never turned a screw, you will be able to install this device thanks to the detailed description of the instructions. If you're good with tools/mechanics, you'll probably find the instructions overly detailed (to the point of being confusing). I immediately noticed a difference in the engine's tone (a little louder, angrier, hoarse - in a good way). /guttural). Fuel consumption increased dramatically with only a slight increase in power. Average fuel economy (both city and highway) averaged 27mpg, while fuel economy rose to 36mpg (cumulative total mpg - city/highway) after installation with conservative driving. This CAI is more of an investment than a purchase. Here's the bottom line: A roughly 25 percent increase in fuel efficiency means I'm getting every fourth tank of gas for free. It will pay for itself in no time.