Innovate Motorsports 3918 MTX-L PLUS Wideband AFR Gauge Kit w/ O2 Sensor

Vehicle Fitment

• Universal - Fits any internal combustion engine with appropriate gauge installation (not specific to any vehicle)

Features

• MTX-L PLUS wideband digital air/fuel ratio (AFR) gauge kit
• Patented DirectDigital™ technology for high-accuracy readings
• Large 52 mm (2 1/16") digital display with programmable "digital needle"
• Includes Bosch® LSU 4.9 wideband O2 sensor for precise measurement
• Interchangeable bezels (black/silver) and faceplates (black/white)
• Advanced Sensor Control for optimized heater performance
• Wideband O2 compatible with multiple fuel types (E85, methanol, diesel, gasoline)
• Innovate MTS serial I/O and LogWorks PC datalogging support

Specifications

• Part Number: 3918
• Gauge Type: Wideband air/fuel ratio (AFR) gauge
• Gauge Size: 52 mm (2 1/16") diameter
• Display: Digital AFR or Lambda readout
• O2 Sensor: Bosch LSU 4.9 wideband type
• Includes 8 ft sensor cable (≈10 ft overall) and 1" exhaust bung
• Outputs: Analog and serial via MTS interface
• Display Config: Programmable digital needle or numeric

Included Components

• 1x MTX-L PLUS digital gauge
• 1x Bosch LSU 4.9 wideband O2 sensor
• 1x 8 ft sensor cable
• 1x 1" exhaust bung
• 1x Program/data cable
• 1x Interchangeable black faceplate
• 1x Interchangeable white faceplate
• 1x Black bezel
• 1x Silver bezel
• 1x Installation manual

Product Description

The Innovate Motorsports 3918 MTX-L PLUS Wideband AFR Gauge Kit is a universal digital air/fuel ratio monitoring solution built for performance enthusiasts, tuners, and racers. Featuring Innovate's patented DirectDigital™ technology and advanced sensor control, this kit delivers fast, accurate wideband oxygen sensor feedback for real-time AFR or lambda readings. The large 52 mm digital display with programmable digital needle gives clear, easy-to-read output while allowing flexible installation in a variety of vehicles.

Included in the kit is a Bosch LSU 4.9 wideband O2 sensor, interchangeable bezels and faceplates for customization, and plug-and-play wiring with both analog and MTS serial outputs. Designed to work with all major fuel types - including gasoline, E85, methanol, and diesel - it's ideal for tuning, dyno testing, engine calibration, and data logging. Because it's a universal fit product, this gauge kit can be installed in any engine bay or dash pod that accommodates a 52 mm gauge, making it perfect for street cars, track vehicles, and custom builds.