VIDEO: Hennessey Takes Its New TRX Mammoth 900 To The Dyno & Track:
HPE Amps Up The TRX To 900+ Horsepower...
![2021 Ram 1500 TRX Mammoth 900 vs Stock TRX. (Hennessey) (3).jpg 2021 Ram 1500 TRX Mammoth 900 vs Stock TRX. (Hennessey) (3).jpg](https://moparinsiders.com/community/data/attachments/4/4256-ad41b0d2dcda3e0dd080ca31d5a9c668.jpg)
Since the introduction of the 2021 Ram 1500 TRX, Hennessey Performance Engineering (HPE) has unveiled two different power upgrade kits for the performance off-roader. The first was a six-wheel-drive (6×6) variant, ditching the supercharged 6.2-liter HEMI HELLCAT V8 in favor of a tuned supercharged 7.0-liter (426 cubic-inch) HEMI HELLEPHANT V8 making 1,200 horsepower. Only three of those trucks are to be produced. The second was a 1,000 horsepower variant of the TRX, using the company’s HPE1000 high-performance package for the HELLCAT engine. Now, the Texas tuning shop has released details on a third package, as well as video of the truck in action for the first time.
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VIDEO: Hennessey Takes Its New TRX Mammoth 900 To The Dyno & Track:
Since the introduction of the 2021 Ram 1500 TRX, Hennessey Performance Engineering (HPE) has unveiled two different power upgrade kits for the performance off-roader. The first was a six-wheel-drive (6x6) variant, ditching the supercharged 6.2-liter HEMI HELLCAT V8 in favor of a tuned...
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