The K&N 69-4532TTK is a Typhoon cold air intake for the 2011-2013 Buick Regal with the 2.0L L4 engine. It is an aluminum tube air induction system with an oversized air filter, and it uses a mandrel-bent aluminum intake tube. Its main draw over the stock airbox is the reusable filter: each system is paired with a washable, reusable High-Flow air filter made from oiled cotton media, so you clean and re-oil it instead of replacing paper elements. Owners on user forums warn that over-oiling can contaminate the MAF sensor, so a light, careful re-oiling routine matters.
Turbo-equipped Regals need a little extra planning. Owners on user forums report that the alcohol sensor on the firewall is in the way and has to be moved over for the pipe to fit, and one owner secured it out of the way with the open end facing down. The swap also means removing the factory airbox, and owners on user forums report that a significant amount of dirt fell into the turbo just from removing the factory air box, so cover the turbo inlet before you pull the box. The manufacturer offers an installation instruction sheet for this kit, and it should be your reference for the install.
Search terms this kit matches: 2011-2013 Buick Regal 2.0L cold air intake, K&N 69-4532TTK, Typhoon intake, mandrel-bent aluminum intake tube, oiled cotton gauze filter, Regal 2.0T turbo intake, and reusable high-flow air filter.
The manufacturer lists this kit for the 2011-2013 Buick Regal with the 2.0L L4. Owners on user forums report installing it on turbo models, though they note the firewall sensor must be moved to clear the tube.
The manufacturer states the filter is washable and reusable. Owners on user forums recommend cleaning it and applying only light oil, since excess oil can reach the MAF sensor.
The manufacturer provides an installation instruction sheet for this kit, which should be followed for torque and routing details. Owners on user forums report that removing the factory airbox can let debris fall toward the turbo, so block the inlet before you start. On turbo models, plan to relocate the firewall sensor so the tube seats properly. Confirm the expected install time and required tools against the manufacturer's instruction sheet.