Fummins Tuning vs Diesel Conversion Specialists (DCS)
Compare Cummins Swap Tuning Companies
Choosing a tuner for your Cummins conversion is about far more than horsepower. Every swap is different, and the quality of the support behind the tune often determines how enjoyable the finished truck is to own.
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Why Customers Choose Fummins Tuning
Built Around Support
The first tune is only the beginning.
If your truck needs adjustments, I'll continue working with you until the tuning is correct. Whether the solution involves calibration changes or simply helping diagnose another issue, my goal is to help you get back on the road.
Real Experience
I don't simply tune Cummins swaps.
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I own them.
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I drive them.
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I build them.
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I tow with them.
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I love them!
Multiple Flashing Platforms
Every customer has different preferences.
Fummins Tuning currently supports multiple tuning platforms, including:
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• HP Tuners
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• EZ Lynk
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• TDN (Tuner Delivery Network)
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• EFI Live
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• SCT
What Happens After You Order?
Order Your Tune
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Ticket creation
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Receive Your Calibration
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Flash Your Vehicle
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Drive/Evaluate/Datalog
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Need Adjustments?
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Reply to your Support Ticket
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Receive Updated Calibration
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Repeat Until You're Happy
A Different Approach to Cummins Swap Tuning
Compare Cummins Swap Tuning Companies
A Cummins swap is rarely perfect after the first flash.
Different wiring, transmissions, transfer cases, axle ratios, tire sizes, turbochargers, injectors, and custom modifications all affect how a truck behaves. That's why revisions should be expected on a custom build—not feared.
At Fummins Tuning, revisions are part of the process. My goal isn't simply to deliver a tune. My goal is to help you build a truck that drives the way you expect.