The K&N 33-2379 is a washable, oiled cotton-gauze replacement that drops into the factory airbox on the 2007–2008 Acura TL with the 3.2L V6. The manufacturer's cotton air filter is listed for 2007 and 2008 Acura TL models with the 3.2 liter engine. Instead of buying a disposable element every service interval, you clean, re-oil, and reinstall the same panel filter, which offsets the higher upfront cost over the life of the car. Because K&N lists this same number for the 3.5L TL of those years, confirm your engine size before ordering, since the part number covers both V6 applications.
The buying case rests on reusable high-flow cotton media that keeps the stock intake and airbox in place, so there are no tubes or sensors to relocate. Shoppers searching for a 2007 Acura TL 3.2 drop-in performance air filter or a reusable 2008 TL V6 panel filter are usually after this exact swap. Owners on user forums describe it as a straightforward job that centers on the airbox lid, and some note that the plastic flexes enough to seat the new element without disconnecting the intake hose. One user-reported gotcha is a corner of the airbox that sits loose after reassembly, so check the seal before closing everything up.
The manufacturer's application list shows 33-2379 for 2007 and 2008 TL models with either the 3.2L or 3.5L V6, so the part number alone does not confirm which engine it suits. Check your engine size against your vehicle before you order.
Owners on user forums report that opening the airbox lid with its four screws is enough to swap the filter. Some choose to remove the bumper and resonator for extra working room, while others say that step is unnecessary.
This is a beginner-level swap that requires only a Phillips screwdriver. Remove the four screws around the airbox cover, lift the lid toward the front of the car, and take out the stock element. Set the K&N into the airbox base, align its tabs and holes with the housing, then reinstall the lid and check that every corner seats evenly. Owners on user forums suggest checking the corners closely, since a loose corner can let unfiltered air bypass the element.
