The K&N 69-9508T is a cold air intake for the 2014–2015 Audi A4 2.0L turbo four-cylinder. The manufacturer describes it as an aluminum tube induction system with an oversized air filter, and it is sold within its 69 Series Typhoon line. Its stated gain is an estimated 15.49 HP at 3600 RPM, so a buyer should treat that figure as a manufacturer projection rather than a guarantee on any single car.
The case for paying more than a universal cone kit rests on fit and filter upkeep. This is a vehicle-specific system, so there is no fabrication or guesswork around the factory airbox. Its oiled cotton element is washable and reusable, and the manufacturer lists RU-3570 as the replacement filter for when the original wears out. Published trim lists for the A4 disagree, so confirm your exact trim before ordering. The kit is also not legal for sale or use in California on pollution-controlled vehicles, which matters for anyone registering a car there.
The manufacturer lists the 2014–2015 Audi A4 2.0L turbo as the application. Trim-level lists published elsewhere do not agree, so confirm your exact trim and engine with the manufacturer before ordering.
No. The manufacturer states the kit is not legal for sale or use in California on any pollution-controlled motor vehicle.
The filter is washable and reusable, so it is cleaned rather than replaced at each service. The manufacturer lists RU-3570 as the replacement filter for when cleaning no longer restores it.
The manufacturer publishes an installation instruction sheet for this kit, so check it for the tool list and step order before you start. Owners on user forums who fitted the earlier 2009–2010 B8 A4 version of this Typhoon reported a job of about two hours with a helper, and they singled out the hose connection as the fiddly step. Plan extra time for that connection and for routing the intake clear of the heat shield.