Does it work for the suzuki esteem ??

THIS MSD BOX WILL WORK WITH 4,6, & 8 CYLINDER ENGINES.

Can the Rev limiter be used on a fuel injected engine ? 1990 Mustang.

Yes it can, it controls the spark.

Why won’t Amazon ship this item to me in California?

But it IS legal in California. https://ww3.arb.ca.gov/msprog/aftermkt/devices/eo/d-40-43.pdf

Msd 6425 Digital 6al Ignition Control W Rev Control Red

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🚀 Ignite your engine’s potential with precision and power!

BUILT IN DIAGNOSTICS 💡 - Integrated LED system checks keep you informed and in control at all times.
POWER PACKED IGNITION ⚡ - Delivers over 530 volts and 135mJ spark energy for unmatched engine performance.
CLEAN SECURE WIRING 🔧 - All wires exit through a sealed, locking connector for a sleek, hassle-free install.
UNIVERSAL COMPATIBILITY 🔄 - Works flawlessly with 4, 6, or 8-cylinder engines and multiple trigger inputs.
PRECISION RPM CONTROL 🎚️ - Easily set your rev limit with dual rotary dials in 100 rpm increments—total engine command.

The MSD 6425 Digital 6AL Ignition Control is a high-performance ignition box designed for 4, 6, and 8-cylinder engines. Featuring a microprocessor-controlled rev limiter adjustable in 100 rpm increments, it delivers over 530 volts and 135mJ of spark energy per firing. Its sealed locking connector ensures clean wiring and easy installation, while a built-in LED provides real-time system diagnostics. Engineered for efficiency, it uses less current to produce more power, making it a top choice for professional-grade ignition control.

Specifications

Asin	B004EGZU42
Best Sellers Rank	319,684 in Automotive (See Top 100 in Automotive) 718 in Car Ignition & Heating Systems
Brand	MSD
Colour	Red
Customer Reviews	4.7 4.7 out of 5 stars (548) 4.7 out of 5 stars
Global Trade Identification Number	00085132064250
Included Components	MSD Ignition 6425 6AL Ignition Control Box , Red
Item Type Name	MSD Ignition 6425 6AL Ignition Control Box , Red
Item Weight	1.4 Kilograms
Manufacturer	MSD Ignition
Manufacturer Part Number	6425
Material	Plastic
Model Number	6425
Number Of Items	1
Number Of Packs	1
Unit Count	1.0 count
Upc	085132064250

Reviews

User

Excelente

Muy buen producto recupera entre 10 y 15 caballos, las conexiones simples y de muy buena calidad vale la pena la inversión para actualizar el encendido de un clasico

5.08.2023

User

Fast shipping

Works awesome. Took a minute to figure out the rev limiter but works like it should.

17.03.2026

User

Works as it should

24.11.2025

User

FALLA

solo funciono un poco mas de un mes y fallo

15.11.2019

User

Worked perfect

Bought this one because my old one was acting up, now my old one is my back up. Shopped around a lot for this item, this one from this vendor was the best value.

16.02.2026

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MSD 6425 Digital 6AL Ignition Control w/Rev Control - Red

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Details

Description

Specifications

Reviews

Common Questions