Skeptical at first.....
Definitely worth it! I researched CAI%X92s for quite a while and figured I would see a slight improvement in gas mileage of up to 1 mpg. Pleasantly surprised to see just under 3 mpg improvement with the K&N 57 FIPK. Sounds no different than stock under normal load, but sounds like a million bucks when you get in the gas pedal. Kind of addicting. I drive with a fairly heavy foot on the pedal. Wish I would have put one on much sooner.
Blackhawk Intake System on 2013 Denali
The system itself fits very well and the appearance looks like it belongs under the hood. I gave 4 stars verses 5 on Overall Rating and Ease of Installation not due to the unit but the vague instructions. Each step does have a picture but simply stating perform that operation without detailing hardware etc does have its drawbacks. I referred to the exploded view to determine correct locations.
Volant powercore cai
Volant CAI with power core filter was a perfect fit on my 2002 Yukon, no induction noise has been noticed over the stock air box. The construction and appearance are top notch for the cost of the unit. Cleans up the under hood appearance and time will tell if drive ability or economy is improved. I like it and would recommend it over other cai products on quality alone.