This MAF sensor is recommended for supercharged, turbocharged and other high output engine applications. LPE MAF solves the mass air flow signal drop out problem found on 2005-2006 C6 Corvettes that occurs under high air flow conditions. The Lingenfelter 100 mm tube is precision CNC machined from aluminum and then anodized black for durability and appearance. The large diameter, low restriction LPE 100 mm MAF sensor assembly provides accurate airflow measurement while producing very little restriction, even at very high power levels. This MAF sensor will NOT work with stock engine programming and requires recalibration of the factory PCM or ECM. The proper starting MAF sensor curve for most GM applications is supplied with the sensor. This MAF sensor is 4.00 inch outer diameter and 4.00 inches in length. Custom ductwork may be needed to install. You will need to buy an adapter harness for installation, either the universal adapter harness with 12 inch leads that can be hard wired or a plug-and-play harness.