Best product, baked up with #1 service Purchased a filter on-line from a 'stockist', arrived without the frame to secure in the filter housing. Supplier didn't have another in stock, so contacted K&N UK by email explaining the issue and if I could buy the frame alone. Response within minutes with offer to provide required frame without charge, even though it was not their problem. Arrived within 48 hrs of being informed; great service. Product....have always fitted to EFI vehicles, especially if planning a re-map...6 bikes, 2 vans and 3 cars !

The worst customer service ever The worst customer service ever. All they care is to get your money and when you need their support they won’t give the extra effort to have a happy customer. Will not do business with K&N ever.

DONT EVER BUY FROM K&N WEBSITE! DONT EVER BUY FROM K&N WEBSITE!! If you want a product for your vehicle, buy from another site that will allow returns. K&N will ship it to you for free, but require you to pay for return shipping.

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.

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