Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Air and Fuel› Oxygen Sensors, Controllers and Components

Innovate Motorsports

MTX-L Plus Wideband AFR Gauge

Name: MTX-L Plus Wideband AFR Gauge
Brand: Innovate Motorsports
SKU: INNVT-3918

$242.49

SKU: INNVT-3918

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Easy — 1–2 hours

Overview

The Innovate MTX-L Plus is a digital wideband AFR gauge offering enhanced speed and accuracy. It features Innovate’s patented DirectDigital™ technology and advanced sensor control for faster O2 sensor feedback. This gauge displays Air/Fuel Ratio and Lambda and is compatible with MegaSquirt, MS3Pro, and MSPNP ECUs.

Show original supplier description

It utilizes Innovate’s patented DirectDigital™ technology combined with advanced sensor control to optimize heater performance and deliver faster O2 sensor feedback, making it their most responsive air-fuel ratio gauge to date. The MTX-L Plus features a large digital readout that combines a bright digital display with a programmable digital needle, offering the benefits of both analog and digital functionality. The 52mm (2 1/16” diameter) gauge is highly customizable with interchangeable black and silver bezels and white and black faceplates. It supports various fuel types and integrates with several aftermarket ECUs and standalone systems. Additionally, Innovate MTS Serial Integration allows for expanded logging capabilities with MTS-enabled devices via Innovate’s LogWorks software. Key specifications include a measurement range for AFR and Lambda display, two programmable analog outputs (wideband and narrowband), and a 12V DC power supply. The kit includes the MTX-L Plus gauge, interchangeable bezels and faceplates, a Bosch LSU 4.9 wideband O2 sensor with an 8-foot cable (10 ft. overall length), a 1″ weld-on exhaust bung, a serial programming cable, and a user manual.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Innovate Motorsports
Part Number	INNVT-3918
Category	Air and Fuel

Videos

How to Setup and Tune An Innovate SCG-1 Boost Controller

WIDEBAND INSTALL: Innovate MTX-L Plus Wideband

Unboxing the MTX-L Digital Air/Fuel Ratio Gauge Kit.

Wideband AFR Gauge Kit Install & Calibrate - Innovate Air/Fuel Ratio | Honda Civic Turbo

Installing an Innovate Wideband and boost gauge in the new edge!

Miata Innovate LC-2 Wideband AFR and O2 Install Guide

How to calibrate the MTX-L Digital Air/Fuel Ratio Gauge.

DIY Innovate MTX-L Wideband Install

Innovate DLG-1 Dual Lambda Gauge Install Overview

Innovate's All New MTX-L PLUS

Testing & Calibrating the Innovate DB-Blue Kit (Blue Leds, LC-2 and 02 Sensor)Testing dblue Full

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy