This is a 16" extension for the MAF Sensor on a 2015+ Subaru WRX. It is included with the COBB Big SF Intake System. Most aftermarket intake systems on the 2015+ Subaru WRX require the MAF Sensor wiring to be extended for proper fitment.
Plug and Play OEM Connectors
Anti-Chafing Sleeve
SAE J1128 Compliant Wiring