LSU4.9 Upgrade Kit 3ft Sensor Cable + O2 Sensor

The LSU4.9 Upgrade Kit with 3ft Sensor Cable and O2 Sensor from Innovate Motorsports is the tuner's solution for precise air-fuel ratio monitoring on modified and stock engines alike. This wideband oxygen sensor system eliminates the guesswork from engine tuning by delivering real-time AFR data to your Innovate Motorsports wideband controller or gauge display. Whether you're dialing in a carburetor conversion, validating a fuel injection tune, or monitoring lambda across varying load conditions, the Bosch LSU 4.9 sensor provides the accuracy and reliability serious performance builders demand.

At the heart of this kit lies the Bosch LSU 4.9 wideband sensor, engineered to measure oxygen concentration across a wide operating range (0.5 to infinity lambda) with millisecond response times. Unlike narrowband O2 sensors that only signal rich or lean at stoichiometric, the LSU 4.9 delivers continuous analog feedback, allowing you to optimize fuel delivery across the entire RPM and load spectrum. The included 3-foot sensor cable provides flexible installation routing from your exhaust manifold to the cabin-mounted gauge or controller, minimizing EMI interference while maintaining signal integrity. This compact upgrade kit (0.6 lbs, 8 x 1.35 x 8.7 in) fits seamlessly into most engine bay configurations without requiring extensive rewiring or fabrication.

This system benefits carburetor tuners, EFI tuners, forced-induction builders, and anyone running a custom or modified fuel map. Installation pairs the LSU 4.9 sensor with any compatible Innovate Motorsports wideband controller or display gauge, allowing you to log AFR trends in real time during dyno sessions or street validation. The sensor threads directly into your exhaust manifold or collector bung, and the 3-foot cable length accommodates most mounting scenarios without slack or tension. For serious engine builders seeking repeatability and precision tuning feedback, the LSU4.9 Upgrade Kit is an essential diagnostic and calibration tool.