Great product. Excellent air flow. Increased my gas mileage 1.5 miles to the gallon. Bought a second for my dads truck. Much cheaper than a complete cold air intake system and doing just a good.

Love this filter so simple unlike all the other setups out there

Excellent product looks great feel the diffrence from stock

Riffraff has the best prices around on these replacement filters. Why go anywhere else?

Surprised at how big it is compared to the stock filter element. Everything fit where it was supposed to. The only thing is I bought a 4" coupler from Home Depot and it was too big. Need 4" tubing for a proper fit. It just looks awesome and I can see how it's an upgrade.

I have been using 6637 since 1999 , Can't guess how much fuel I have saved. Thanks FTE for introducing me to Riffraff

Best filter for the money, you won't find a better price or get better service. Buy two at a time and save some money on shipping!!!

Handles my 160/100 and 38R great. Pulls filter minder when restriction builds. Great price too:

Friendly service and fast shipping. great product for the price!