When do you change a Napa 6637?

[Jarrod B]

Its gonna sound like a stoopid question. But when is it time to replace the filter? It flows better so I thought I could prolong it. Mines close to dark gray or just a shade darker than gray. And around 25k/1.5yrs on it now. Not really dusty out here but dirt builds up sometimes and i have to shake it out.

And wheres the cheapest to get it from. I heard rifraft was the place.

[Jarrod B]

nevermind. ill just go ahead and order one. they have it for $29

[Ryan Rønning]

I would say the best time to replace it is when its to dirty!

[Dietoremain]

since i drive in dirt every day, i replace mine every few months, definitely doesnt let a bit of dirt through, but you can tell when its gettin clogged, clean filtering for sure though my intake and compressor wheel are clean as a whistle. and yes riff raff has best price and they're great to deal with.

[Jarrod B]

Riffraft has it for br. But 14 to ship. I can go to napa and have it instantly for like 8 more.