AIRAID Cold Air Intake by K&N: Increase Horsepower, Dry Synthetic Filter: Compatible with 1999-2007 CHEVROLET/GMC/CADILLAC (Escalade, Avalanche, Silverado, Suburban, Tahoe, Sierra, Yukon) AIR-201-712

If you’re going to go with a new intake, go Airaid; it’s an obvious choice. That said, the difference this kit makes on a GMT 800 (5.3L LM7 in my case) isn’t huge. It definitely deepens the sound a little and increases the throttle response just a little but the difference really isn’t worth the price. I think I’d recommend the filter alone as a nice upgrade but this kit with the intake tube is just too expensive for what it does.

I purchased for my 2004 Yukon 5.3 liter. It does the job and increases HP. Fuel efficiency unnaffected so far. Waiting on Header installation.

For a 2003 5.3L Silverado. Easy install. I did expect a bit more sound out of it from what other reviews have said, but oh well it's about the flow and not so much the sound. I haven't had it on long enough to notice any improvements

Installs easy, increases air flow compaired to stock, a little pricy IMO for what it is! But recomend to everyone I talk to ! I probably wouldn't have paid box store price

I feel like I would gi e it atleast a 4. However, the tube coming from the throttle body to the massive air flow wont fit. It wont stay on the mass air flow. I need to figure out how to return it.

This is the cold air intake deal. Many others are twice the price, but with no more and perhaps less performance. The factory airbox flows enough air just fine. I wanted to get rid of the factory air tube with all of its weird channels. I am very happy.

Love the sound it gives the burban and can definitely say it feels quicker because of the extra power and the added throttle response. BTW this intake setup has been proven to be more efficient than the traditional metal tube and heat shielded cone filter as the stock air box is said to be a "cold air box".

Fit my 2003 Chevy suburban Z-71, didn’t see any major noticeable power improvement.