Is this wideband standalone?

Yes it is. But you can always hook it up to a stand alone ecm

What exactly is included in the purchase , it seem like the full kit with all cables to instal but i dont see the necessary exhaust bung or wire insul

Yes, this is not included. It is optional, up to your requirements !

Will this product work on a carburetor engine with no ecu? mine is a 1990 corolla with a 4af engine. do i need to buy the exhaust bung and sensor?

Yes as it's a standalone gauge with a ecu reference if you had an ecu. It comes with the sensor and weld in bung

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🔥 Master your engine’s air-fuel mix like a pro!

CUSTOMIZABLE AESTHETICS - Interchangeable plates and bezels let you match your dashboard style with ease.
PLUG PLAY CALIBRATION - Factory air calibration means zero hassle—just install and go.
PRECISION YOU CAN TRUST - 100% digital control ensures ultra-accurate air-fuel ratio readings every time.
UNIVERSAL ENGINE COMPATIBILITY - Works seamlessly with most engines and fuel types for ultimate versatility.
EFFORTLESS INSTALLATION FLEXIBILITY - 3-meter sensor cable lets you position the gauge exactly where you want—no compromises.

The INNOVATE MTX-L PLUS 3918 is a 52mm wideband air-fuel ratio gauge featuring a 3-meter sensor cable for flexible mounting, 100% digital sensor control for precise readings, and factory calibration that eliminates the need for manual adjustments. Compatible with most engines and fuels, it includes customizable plates and bezels for a tailored look.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.