2019-2024 6.7 Cummins Hardway Tuning - HPTuners Shift on the Fly

We here at Hardway Performance are proud to finally release a tuning option for current generation of Ram trucks equipped with the 6.7 Cummins engine. Currently only available for 2019 to 2024 model years and 2500/3500 pickup models only. Cab & Chassis offerings will be coming very soon once further development is complete. 2022 and newer model years are supported with a ECM replacement, see purchase options below and watch THIS VIDEO for detailed information pertaining to 2022+ ECM replacement and tuning.

• SIX total shift on the fly power levels, accessible by utilizing the cruise control buttons on your steering wheel, no holes to drill or third party switches needed! (2023+ trucks we are waiting on the software update from HpTuners to be able to give you this function A free update will be sent out with SOTF capabilities as soon as it’s available)
• Increased pedal response and drastically improved overall drivability.
• Removed speed limiter - for when 102mph just isn't quite enough.
• Exhaust Brake Memory - tired of having to turn your EB back on how you like it every time you get in the truck? Not anymore, it'll stay right where you left it last.
• Included transmission tuning (68RFE only) - Line pressure increased from stock 160psi to 170psi with transmission builder specific calibrations available up to 250psi, L/R clutch fix to solve sprag rolling issues, UD air test disabled to prevent bind up with increased line pressure.

An HPTuners MPVI2, MPVI2+ or MPVI3 with at least 6 universal credits and an HPTuners Smart Bypass Cable OR a Hardway 2018+ SGW bypass cable as well as a windows based computer with an updated version of the HPTuners VCM Suite installed

This line of calibrations has undergone extensive in house development including hundreds of hours of dyno time, hundreds of internal revisions & thousands of road miles across several trucks in order to deliver you, the end consumer, a very well rounded and polished final product. To wrap up our development on this platform, we hauled a 2019 2500 Standard Output (68RFE) truck all the way from Florida to Southern California to the SEMA Garage to take part in their SC-E program. While being tested at the SEMA Garage, the truck underwent a stringent 6 week+ independent product test to not only ensure the product performs as advertised but also is within compliance to be sold as 49 state legal / EPA Compliant product and simultaneously obtaining the proper test data and documentation to submit to CARB to obtain an Executive Order (EO) which will make Hardway Tuning 50 state legal!

2019-2024 Standard Output 68RFE equipped chassis dyno results, utilizing our in house Dynojet 224XLC2 (see pics & attached graphs). Chrysler rates these trucks at 370HP/850TQ.

• STOCK 366HP/876TQ (non SOTF operating system)
• SOTF0 365HP/875TQ (stock setting on SOTF operating system)
• SOTF1 394HP/861TQ (+28HP/-15TQ)
• SOTF2 434HP/897TQ (+68HP/+21TQ)
• SOTF3 458HP/978TQ (+92HP/+102TQ)
• SOTF4 481HP/1061TQ (+115HP/+185TQ)
• SOTF5 497HP/1139TQ (+131HP/+263TQ)

2019-2024 High Output AS69 equipped chassis dyno results, utilizing our in house Dynojet 224XLC2 (see pics & attached graphs). Chrysler rates these trucks at 400HP/1000TQ.

• STOCK 399HP/1017TQ (non SOTF operating system)
• SOTF0 (missing dyno run sheet)
• SOTF1 465HP/1029TQ (+66HP/+12TQ)
• SOTF2 469HP/1062TQ (+70HP/+45TQ)
• SOTF3 485HP/1119TQ (+86HP/+102TQ)
• SOTF4 504HP/1165TQ (+105HP/+148TQ)
• SOTF5 526HP/1261TQ (+127HP/+244TQ)

Frequently Asked Questions:

Q: How do you change SOTF power levels?

A: Easy! You don't need anything except your factory cruise control buttons. There are 6 total power levels (SOTF0-5) & you access these by pressing your cruise (Cancel) button and (RES+/SET-) buttons. When you first install the SOTF tune, it will default to SOTF0, if you'd like to go to SOTF5, press (CANCEL) 1X and then (RES+) 5 times quickly, the dash will ding while the lightning bolt flashes an appropriate amount of times for what SOTF level you're on, so 5 dings = SOTF5.  If you're on SOTF5 and you want to go to SOTF3, press (CANCEL) and (SET-) twice, this will take you to SOTF3 and the dash will ding while the lightning bolt flashes 3 times. Also at any time you can press the (CANCEL) button without pressing anything else and the dash will tell you what SOTF it's in. This sounds complicated but it makes perfect sense once you do it a few times in the truck.

Q: Will this improve fuel economy?

A: We wouldn't expect any changes in fuel economy with this product. Although we surely know how to squeeze a few more drops of fuel per mile out of these trucks, all of our known methods also raise NOX emissions due to leaning out the combustion event, which is against the wishes of the powers that be so unfortunately our hands are tied. If you're truly after economy our best suggestion is to stay away from the lift & leveling kits, big or aggressive tread tires, make the truck as aerodynamic as possible (say no to moose mirrors) and drive like you've got an egg under the skinny pedal.

Q: Will this increase regeneration events or hurt my emissions system?

A: We've seen no changes in regen frequency under normal driving circumstances. Think of your DPF as a big ugly filter that catches particulate matter (exhaust soot), if you drive stoplight to stop light with a heavy right foot, you can soot-load the DPF quickly causing frequent regen, this can be done regardless of if the truck is tuned. Lets say hypothetically you're driving around on SOTF5 and flooring it from every stop light, you can surely expect to soot load the DPF quicker. Naturally diesels have smoke output especially before boost comes up, even though you can't see it, your emissions equipped pickup truck is still "smoking", your DPF however is catching it and processing it. In summary, enjoy the added power responsibly and you'll notice no difference in DPF regenerations.

Q: Will this allow me to consume less or no diesel exhaust fluid at all?

A: This will not change the consumption of DEF whatsoever, the entire DPF/EGR/DEF subsystems of the truck remain fully functional as they were from the factory.

Q: Will this product allow me to remove my emissions components? 

A: Definitely not, this is meant for all emissions components to be left intact and functional, no exceptions. Please do not contact us with your requests for this to be done, there are no secret codewords or passwords and we don't care who you are, who you know or what you think about emissions regulations, we don't like them either but our hands are tied and the answer is no.