AEM Bosch 4.2LSU Wideband Sensor W/ Stainless Tall Manifold Bung Flexplate - 157 Tooth -

Flexplate - 157 Tooth - Steel - Internal Balance - C4 - Small Block Ford - Each

Front Suspension Kit - Phantom Series - Single Adjustable - Front - 650 lb/in Spring Rate - Control Arms / Ball Joints / Hardware Included - Front - Chevy Fullsize Truck 1963-87 - Kit

Fuel Log - Adjustable - 10 AN Female Inlet - 10 AN Female Outlet - Double Adjustable Bypass Regulator - Gauge - Aluminum - Black Anodized - Holley Carburetors - Each

4 in Diameter - 1 in x 24 Spline - Sprung Hub - Organic - Subaru WRX 2004-21 - Kit

0 qt Capacity - Aluminum - Natural - TH350 - Kit

AEM Bosch 4.2LSU Wideband Sensor W/ Stainless Tall Manifold Bung Flexplate - 157 Tooth -These AEM LSU 4. 2 sensors have a laser etched, calibrated resistor in the sensor's connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor's output. The wideband sensor is laboratory calibrated at the Bosch factory, accurate to 0. 1 AFR and never requires free air calibration when used with an AEM wideband AFR controller.