[njsteve]

BTW, here is the SAE testing results for all the Hellcat variants over the years. This is the actual data from SAE when the drivetrains were emissions certified.

Gotta love how Dodge just altered the HP ratings by simply posting the numbers at 6,000 or 6,200 rpm instead of 6,400 for most of the models. They originally didn't want to upset the 2018 Demon owners when the Redeye option came out in 2019, which was actually the entire Demon drivetrain minus the transbrake equipped transmission.

So your car is actually 745HP @6200 versus the 717@6000 as advertised. :-)

2015 - 2017 Hellcat (compared to base 2015 Hellcat):
714 HP @ 6200rpm measured, 707 HP @ 6000rpm advertised
652 TQ @ 4800rpm measured, 650 TQ @ 4800rpm advertised

2018 Hellcat (+ electric power steering, widebody option with 20x11 rims)
730 HP @ 6200rpm measured, (+16 HP), 707 HP @ 6000rpm advertised
654 TQ @ 4800rpm measured, (+2 TQ), 650 TQ @ 4800rpm advertised

2019+ Hellcat (Combined air-flow rate of 1,048 CFM, after-run chiller, torque reserve, dual scoop hood, line lock):
745 HP @ 6200rpm measured (+31 HP), 717 HP @ 6000rpm advertised
662 TQ @ 4800rpm measured, (+10 TQ), 656 TQ @ 4800rpm advertised

2019+ Redeye (Combined air-flow rate of 1,130 CFM, 2.7L SC @ 14.5 psi peak boost, 6500 rpm rev limit increase, 25 engine component upgrade including strengthened connecting rods and pistons, high-speed valve train, fuel injection system and improved lubrication system, SRT Power Chiller, 700 cc fuel injectors, Two dual-stage fuel pumps, steel prop shafts (driveshaft) for 15% increase torque capacity (2lbs heavier), 41-spline half shafts for 20% increase torque)
793 HP @ 6200rpm measured (+79 HP), 797 HP @ 6300rpm advertised, 812 HP @ 6400rpm measured
709 TQ @ 4800rpm measured (+57 TQ), 707 TQ @ 4500rpm advertised, 719 TQ @ 4800rpm measured

2020 - 2023 Super Stock (Combined air-flow rate of 1,134 CFM)
793 HP @ 6200rpm measured (+79 HP), 807 HP @ 6400rpm advertised, 812 HP @ 6400rpm measured
709 TQ @ 4800rpm measured (+57 TQ), 707 TQ @ 4500rpm advertised, 719 TQ @ 4800rpm measured

2018 Demon (Combined air-flow rate of 1,150 CFM, transbrake, drag-mode suspension, Air-Grabber hood)
804 HP @ 6200rpm measured (+90 HP), 808 HP @ 6300rpm advertised, 812 HP @ 6400rpm measured
719 TQ @ 4800rpm measured (+67 TQ), 717 TQ @ 4500rpm advertised, 719 TQ @ 4800rpm measured

2018 Demon (+ 100 octane PCM tune)
835 HP @ 6200rpm measured (+121 HP), 840 HP @ 6300rpm advertised, 845 HP @ 6400rpm measured
776 TQ @ 4800rpm measured (+124 TQ), 770 TQ @ 4500rpm advertised, 774 TQ @ 4500rpm measured

2023 Demon 170
1,025 bhp (764 kW) @ 6,500 rpm with E-85 fuel
900 bhp (671 kW) @ 6,500 rpm with Premium 91 octane fuel
945 lb.-ft (1,281 Nm) @ 4,200 rpm with E-85 fuel
810 lb.-ft (1098 Nm) @ 4,200 with Premium 91 octane fuel

SAE Measured
812 HP @ 6400rpm SAE measured Demon/Redeye/Super Stock/Jailbreak
845 HP @ 6400rpm SAE measured Demon with 100 octane / Race PCM

Advertised Direct Connection Kits
Hellcat:
747 bhp Hellcat w/ PreStage Kit (2015-2018)
757 bhp Hellcat w/ PreStage Kit (2019+)

Redeye:
802 bhp (598 kW) Redeye w/ PreStage Kit
807 bhp (601 kW) SRT Super Stock & Jailbreak w/ PreStage Kit
840 bhp (626 kW) Redeye w/ Stage I (100 octane functionality)
837 bhp (624 kW) Redeye w/ Stage II (3.17 Hellephant pulley and 91 octane)
885 bhp (660 kW) Redeye w/ Stage II (3.17 Hellephant pulley and 100 octane)

Direct Connection Redeye Stage II
(+ 100 octane PCM tune; 180 tstat, 3.17 Hellephant pulley)
875 HP @ 6200rpm measured (+161HP), 885 HP @ 6400rpm measured
787 TQ @ 4800rpm measured (+135TQ), 786 TQ @ 4500rpm measured

Source: SAE Engine Power Certification Database (EPCD)
SAE J1349 certified results. Chrysler Test Center Test Cells C07 and C08.
SAE J1349 testing standards (SAE J1349 standard of 77°F (25°C) day with 0% humidity and a barometric pressure of 29.234 in-Hg (99 KPa)).