MTX-L Plus Digital Air/ Fuel Ratio Gauge Kit

The MTX-L Plus Digital Air/Fuel Ratio Gauge Kit from INNOVATE MOTORSPORTS is an essential tuning instrument for serious engine builders, performance shops, and automotive enthusiasts pursuing precision fuel delivery optimization. Whether you're dialing in a carbureted engine, tuning a fuel-injected platform, or verifying wideband lambda readings during dyno sessions, this gauge kit delivers real-time air/fuel ratio data that informs critical carburetor adjustments and EFI calibration decisions. Mechanics and tuners rely on accurate AFR feedback to balance power output, fuel economy, and emissions compliance across a wide operating range.

The MTX-L Plus employs INNOVATE MOTORSPORTS' proven digital display technology paired with a wideband oxygen sensor to measure combustion efficiency with precision unavailable from basic narrowband sensors. The kit includes the display module, wiring harness, and sensor probe, allowing you to monitor AFR trends during acceleration, cruise, and deceleration phases to identify lean spikes, rich conditions, or mid-range dead spots. The compact digital readout mounts easily to a dash panel or A-pillar, and the robust sensor assembly tolerates high-temperature exhaust environments, providing stable, repeatable measurements essential for accurate tune validation and repeatability across multiple test runs.

This gauge kit benefits carb tuners, EFI system integrators, and engine builders working on street, strip, or track applications where AFR precision directly impacts horsepower, torque curve shape, and engine longevity. Installation requires exhaust bung welding (typically 18mm), proper electrical routing to a 12V source, and basic sensor calibration following INNOVATE's documented procedures. The MTX-L Plus integrates seamlessly into most four-cylinder, V6, and V8 platforms regardless of aspiration, making it an invaluable diagnostic tool for anyone serious about understanding and optimizing their engine's breathing characteristics and fuel mapping.