After 5 tanks I have observed 30-50 more miles per tank. Less downshifts in OD when pulling up hill. Lower overall EGTs and a nice sound over my OEM Style K&N.

My truck had a box with a k&n in it that just wasnt cutting it, bought this kit and it helps it breath a bunch. Buy it you wont be disapionted. It takes longer to unbolt your onld box for removal then it dose to install this kit

Most affordable 6637 option for my 7.3
Product was exactly as advertised and they even included instructions (even though in this case they weren't needed)
I'll be back

I ordered this kit and some other stuff and it was all top notch and they shipped it right away great company will be buying more from them

I gave it 4 stars only for the fact that it might be a bit expensive for what you're getting. However I knew that when I ordered it, right? Quality parts, all in one box, no multiple trips to the parts store. I am curious if it will improve my mpg. I love the turbo whistle, and I saw 24lbs of boost at wot where as with the stock airbox I was getting 22. Overall I'm pleased. Thanks Riffraff!

Installed this on my 97 powerstroke. Great quality. Great fit. Truck breathes a lot better now. Slightly more intake noise but if you want quiet buy a prius. Love the sound. Also gave better throttle response. Looks and functions great. My first riff raff purchase and in no way my last.

The most affordable and effective cold air Intake I have found read many positive reviews before purchase. Reviews were spot on nice clean install procedures and instructions Great product for the pice and my Old PSD OBS loved the fresh air she getting now... Will shop again great service and lighting shipment
Thank you

After installing and using this intake kit, I am very pleased. I highly recommend this system and personally believe all the other expensive intakes are a waste of money. The Riffraff intake does what it's supposed to and I have noticed a difference in my truck. Very well made kit

I wanna start by saying the customer service is 2nd to none, I asked for ah Lil favor with my order, Mr Clay went above and beyond for me. The air filter kit was an awesome investment, very high quality, and it woke up my stock 1995 f350 dully, 7.3 powerstroke. After installing the kit, which is beyond easy, I went for ah test drive. I noticed ah huge difference in power, the more RPM you turn the better this kit sounds. The turbo whistles so much louder, and the truck can finally breath, I would recommend this kit to anyone 100%. Very happy with my air filter kit, thanks Riff Raff diesel performance. I plan on ordering more from yall!!!