Torque Solution underdrive crank pulley kit for Porsche Boxster, Cayman and 996/997 models covers non-turbo engines and is listed for applications with air conditioning. The kit reduces accessory drive speed for potential accessory load reduction and is offered as a direct-fit replacement for compatible models excluding turbocharged variants, per the product listing.
Torque Solution Underdrive Crank Pulley Kit Porsche Boxster/Cayman/996/997 w/AC (Excl Turbo Engines)