Wrong filter Bought a filter for my Z4. It was the wrong type and size. Returned it as requested by the support. A month later no refund. Avoid buying stuff from their official website. I have already disputed the transaction with PayPal and am waiting for a resolution. I did email the support but no response yet.

Avoid K&N! Customer Service Sucks We ordered a K&N air filter for customers' Chevy Silverado, website showed it was in-stock at $69.00. We rec'd an email within an hour of order saying it was out of stock and no estimate of when back in stock. So we ATTEMPTED to cancel order, customer said he'ld get one on Amazon. K&N said order couldn't be cancelled and we'ld have to return product...??? Add insult to injury, Amazon ordered K&N filter was $48.00 and YES we did rec'd original filter weeks later. We returned it with a K&N return authorization and we are still waiting for a refund from these clowns 30+ days later. Advice: Shop around and DO NOT BUY DIRECT FROM K&N - their customer service is WORTHLESS!

Costumer for life. I would like to say that they stand behind there product. I called them about a possible warranty on an air filter for my motorcycle. I purchased the bike used in 09 and the first thing I did was install a K&N air filter. It’s now 2024 and the filter media has started to deteriorate. I have always cleaned it every spring for the summer riding season. I called them and explained what was going on with the filter. They sent me a new one no questions asked. They didn’t even have me pay shipping. I was not expecting that. I will definitely be only running there filters for the rest of my life. You have definitely made a costumer for life.

If you hate yourself If you hate yourself, and want to make your life more miserable buy their cold air intake products and weep as you find out that they neglected to include an EO decal required by law to accompany your air intake product, in order to get your vehicle smog checked. And then rip your hair out in pure frustration as you find out their customer service hotline is just a dead end loop leading to the same message robot with options extension number that don’t even work. Complete nightmare.

Skewed reviews shady practices I posted a 1 star review on their store for a poor fitment cabin filter that had to be curved and shoved making the filtration useless At 3x the cost oem. I get thr email confirmaion of my review and to my surprise my review was NOT posted on thir product site. It only has a handful of 5 star reviews only. This immediately made me lose trust in this company over thir shady practices and skewed reviews. I will never trust another one of their "high rated" products. Purchased many air intakes in tbe past. Will look elsewhere many options out there