Name: Cummins Heavy Duty Tuning | EFILive
Brand: Hardway Performance
Price: 750.0 USD
Availability: InStock

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Unlock your Cummins’ full potential with custom EFILive heavy duty tuning. Better performance, improved drivability, and emissions-compliant tunes backed by Ryan Milliken.

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cummins heavy duty tuning...

Medium and Heavy-Duty Cummins custom tuning now available via EFILive! Model years 2001 and newer are supported and applications include but aren't limited to RV's, Class 8 Trucks, Dump Trucks, and Marine equipment.

Better performance, improved drivability, and emissions-compliant tunes backed by Ryan Milliken.

2018 Cummins 8.9L "L9" or "ISL" in a Dynamax Force HD Super C RV

BEFORE
Configured to 360hp/1150tq, meanwhile that engine is rated from 300hp/860tq to 450hp/1250tq from Cummins.

AFTER

We took it to approximately 415hp/1225tq as well as increasing pedal responce and highway speed limiter per the customers request

2019 Cummins 6.7L "B6.7" in a Forza 36H Pusher Style RV

BEFORE
Configured to 340hp/700tq, meanwhile that engine is rated from 200hp/520hp to 360hp/800tq from Cummins.

AFTER
We took it to approximately 410hp/850tq while increasing pedal response, available engine speed, increased highway speed limiter per the customers request. This translates to 15% faster 0-60 from 20% power increase (+60hp/150tq) over stock and a new found ability to pull those hiss without being a road hazard.

2021 Cummins 8.9L "L9" or "ISL" in another Super C RV

BEFORE
Configured to 360hp/1150tq with the same 300-450hp and 860/1250tq ratings

AFTER
We took this one to 450hp/1250tq per the customers request since towing heavy isn't common for him

Why get hd tuning?

These engines are often over built and turned way down for their specific application's to meet the manufactures requests, leaving lackluster experience behind the wheel and slow pedal response and barely enough power to get out of it's own way, let alone if a trailer is involved. We simply allow the engine to run up to its full potential while adding increased pedal response, increased available engine speed, and increased highway speed limiters (if applicable), think of it like taking the restrictor plate out and allowing the engine to run how it should have from the factory.

Can we tune it?

There are a multitude of applications that Cummins has put out since 2001, the short answer is "YES, we can tune that!", there are however some stipulations and key differences between them, mostly revolving around EFILive's capabilities with each one, the older ones (CM8XX, typically 2001-2010) lack the ability to data log or read/clear DTC's but we can still read/write "Tune" them, all of thew newer ones (CM2XXX 2007-Current) have everything available for them. You can visit the EFILive Website to check your specific application or feel free to reach out to us and we can discuss.

CHECK YOUR VEHICLE