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MSD

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

  • Based on 521 reviews
Condition: New
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$278.95 Why this price?
Save $18.50 was $297.45

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Returnable until Jan 31, 2025

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Availability: 11 left in stock
Fulfilled by Supersonic Performance
Arrives Jul 14 – Jul 15
Order within 9 hours and 24 minutes
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Style: Control Box


Features

  • With soft touch rev control
  • Higher output with 530 primary volts and 135mj of spark energy
  • Efficient components use less current to produce more power
  • Set an RPM limit on the 6AL with two rotary dials
  • Same bolt pattern as the original 6AL with a lower profile housing

Description

Built-In Adjustable Rev-Limit Control;High output with 530 volts and 135mJ of spark energy; Efficient components use less current to produce more power; Set an rpm limit with two rotary dials in 100 rpm increments; Built-in LED for system checks; All wires exit through a locked, sealed connector; Compatible with 4, 6 or 8-cylinder engines;

Manufacturer: ‎MSD Ignition


Brand: ‎MSD


Model: ‎MSD Ignition 6425 6AL Ignition Control Box , Red


Item Weight: ‎3.08 pounds


Product Dimensions: ‎9.45 x 2.36 x 9.45 inches


Item model number: ‎6425


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎6425


OEM Part Number: ‎6425


Date First Available: December 1, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 14 – Jul 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • best bang for your buck!
Style: Control Box
everything came as pictured and worked well
Reviewed in the United States on March 16, 2024 by Darius Yamasta
    • Good quality
Style: Control Box
Worked great no complaints
Reviewed in the United States on January 29, 2024 by Jim knight
    • Awesome product
Style: Control Box
I received DOA MSD control boxes from Amazon, however the third box I received finally did the trick! At first, I believe it was the installation or how my car was pre-wired, however after calling MSD and troubleshooting with them, I was convinced it was the MSD box. I have a smoother ride, more power/torque felt in the low/mid range, starts easier and faster (it already started great, but you can feel/hear the difference with the digital 6AL). Gas mileage, surprisingly, increased. Well worth the investment. My car is a 1973, Datsun 240Z with triple weber carbs, headers, and pertronix 1 elec. ignition. Please note I changed my Pertronix Coil to an MSD coil during troubleshooting before realizing the Box was the culprit, so not sure, but I doubt if the Pertronix coil is compatible with the 6AL. ... show more
Reviewed in the United States on June 13, 2013 by Catalino
    • Increased throttle response
Style: Control Box
It gave my 1992 302 Ford F150 a more immediate response in terms of acceleration. Be sure to time your engine your after installing the box. The MSD box causes it to retard by a few degrees. Be sure to order the 8874 wiring harness if you also own an f150 of that generation to save yourself from splicing wires. ... show more
Reviewed in the United States on December 7, 2023 by Michael Simms Jr
    • Fantastic performance
Style: Control Box
I installed this on an older 95 LT1 v8 it really helped give it a boost in spark and car runs well. Note this was not a stock engine. It has a large cam, ported heads and Headers. Another note. I also have the MSD coil but still use the stock opti spark distributer. one thing that makes a big difference is using the correct oil seal on the distributer once I finally installed the proper oil seal that looks like a standard oil seal all the problems with the opti spark went away after cleaning the oil out of the inside. Don't need to waste money on a 595.00 MSD distributer. Iv'e only heard bad reviews about them. this opti spark distributer was only 45.99 ... show more
Reviewed in the United States on August 14, 2019 by Bob Rains
    • Msd
Style: Control Box
Wired it up and the car started. Everything you need is included but you may want a mounting bracket depending on where you want to put it.
Reviewed in the United States on January 6, 2024 by daveyboy700
    • More power More response but....
Style: Control Box
I have to say, This is a very good product.Install is easy. My car starts easier and runs noticeably better at idle and through entire rpm range. My only prob is that I can't change my rpm limit without a ecu reflash. This rpm limiter will work on older cars. I haven't tested it out to see if it will cut at a lower limit than my stock one for s***s n giggles to make sure it actually works. Besides that there are no issues. ... show more
Reviewed in the United States on February 8, 2014 by Mr.T
    • Very nice and works
Style: Control Box
I mean these have been around for a long time and have been proven to be worthy.
Reviewed in the United States on October 4, 2023 by Amozon shopper. Researcher of everything.

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