Active Autowerke Replacement Double Sided Pulley Kit Belt - E9X M3 2008+ (13-007) 1871 Use of hood pins is

Use of hood pins is advised for safety due to the hood's reduced weight

Engineered to fit universal water methanol injection systems

They replace the restrictive factory airbox and air filter to give you better performance and better engine sound

utilizing factory-style flanges and clamps for bolt-on installation

1997-1999 Nissan Sentra SE-R L4-2

Active Autowerke Replacement Double Sided Pulley Kit Belt - E9X M3 2008+ (13-007) 1871 Use of hood pins isReplacement double sided pulley kit belt designed specifically for the Active Autowerke E9X M3 Power Pulley Kit (2008+). Confirms if your V8 M3 uses a double sided or single sided pulley belt through visual inspection. Single sided belts have one smooth side and one grooved side, typical for 2007 models or those produced up to May 2008. Double sided PK belts feature grooves on both sides and are used on production models from June 2008 onwards. Fits