It was easy to install with a minimum amount of tools. It was in 15 minutes after I opened the box. Very pleased in the way my truck sounds and I can feel a difference in the low end when going hard on the gas.

Great product, Intake elbow and t clamp are great quality and it’s a very fast install. Performance is noticeable. Good customer service too.

Went right on after factory air box is removed

Easy install and perfect fit on my 97. The Donaldson blue filter doesnt lay flat so plenty of air gets in from underneath and the hood clears it by a few inches. You can definately hear the air being pulled in compared to the factory intake.

I am extremely pleased with my 6637 kit, super easy to install and definitely makes a difference in the trucks ability to breathe

Great product fits perfect

Fits well in a 03 F350 7.3, it had originally a K&N in the truck when I bought it, wanted to avoid the issues I've researched. Installed with minimal modifications to the battery tray. Over all enjoy the throttle response improvement, the turbo sounds like it's not struggling anymore. Truck has a stock tune, no major mods except for down tube and exhaust. Everything else is bone stone stock. Have noticed increase in mpg by about 2-3 additional miles. So overall, very pleased, thanks to diesel family at RiffRaff for the kit option! Oh yeah, thanks for the sticker!

Fit as described. The instructions are easy to follow and took me 20 minutes to install. I have an early 99 so the 45 degree piping fit perfectly. I'm running a Hydra chip and did not notice any significant gains on stock but under tunes, I notice an improvement in airflow. There is slight increase in overall noise as well.

If you bought a 7.3 with the stock cold air intake, literally just buy this!
It is a great kit provided by riff raff that simplifies an essential mod to any 7.3.
It also looks good under the hood too!