Aerpro APS289 are front or rear door speaker spacer adapters designed specifically to suit Alfa Romeo 147 (2001-2010) and 159 (2006-2011) models. Supplied as a pair, they are moulded to suit either the front or rear doors of the vehicle and will line up with the original mounting holes, allowing you to install aftermarket speakers with ease, no door modifications required. They are also slim enough to allow the factory door trim to be placed back on the door, allowing you to keep a factory look interior inside the vehicle. APS289 are suitable for 6.5" (165mm) aftermarket speakers. If you are looking to upgrade the speakers in your vehicle you can't go past Aerpro Vehicle Specific Speaker Spacer Adapters.