AEM Bosch 4.2LSU Wideband Sensor W/ Stainless Tall Manifold Bung 2001 pontiac firebird and improved shielding

and improved shielding

Constructed from 6061 T6 aluminum w/ black anodized finish

It features 4" black chrome on T-304 stainless steel tips and the aggressive ATAK(r) sound level with no drone inside the vehicle

50-inch mandrel-bent stainless steel tailpipes exit out each side at an angle behind the rear wheels directing exhaust away from your boat or travel trailer when towing

And less drivetrain movement means more accurate shifts as you row through the gears

AEM Bosch 4.2LSU Wideband Sensor W/ Stainless Tall Manifold Bung 2001 pontiac firebird and improved shieldingThese 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.