I order this for my 2013 Chevy Silverado Crew Cab 5.3L on April 24 and got it April 26. I installed it the on the 26 and drove around yesterday for about 2 hours. First I reset my on board mpg reader; it read 15.4 mpg. I checked it today and it read 16.8 mpg a difference of 1.4 mpg in my favor. With gas $3.68 a gallon it will pay off before the spring is over. So with that being said, I have to say it is all of that and some! I also noticed when I first installed it and drove off, the truck was  A LOT more responsive. I took it on the highway and punched it; WOW! That 5.3L really woke up with no hesitation. I can't see spending over $200.00 for a cold intake filter; It's not like I will be drag racing with my truck. This is a must have with a 5.3L motor and a cheap modification.