Easy to install, great flowing filter for a great price!

Drive your truck one last time then install product. Here that difference, that's your turbo breathing free. WOW what a difference.

IMO best most economical choice over stock airbox setup. Quality product at much lower than NAPA prices.

I took off another after market air cleaner that they claim was a good one this one from you guys I could tell moved a lot more air. It works great with my 4" exhaust and tubro wheel.

First one I bought last well over a year without a pre-filter. Nice snug fit on pipe as well.

Decided to swap to a 6637 filter for better filtration over cotton and I'm super happy with it. It fits perfectly next to the battery box with a bit of simple trimming. Truck gets all the clean air it could ever want. Way cheaper than NAPA too. Fast shipping

Perfect fit to replace my worn out element on my K&N intake. Its nice to have the better filter quality from the 6637 filter at a great price.

You can hear your turbo very clearly with this, especially the blow off valve, which is nice but you also hear additional engine noises which perhaps are not so enjoyable.

Its the cheapest alternative if youre running a chip and need more air, but you'll pay for it with more noise.

Truck runs great with this filter.
Riffraff's fast shipping is awesome.
Best price to!
Thanks for all your teams effort Clay.