John Hennessey test drives a client's 2017 Challenger Hellcat with the HPE850 upgrade kit equipped with long-tube headers, drag radial tires and electronic exhaust cutouts. For more information please contact us: 979-885-1300 |

Would you like to learn how to make fast cars faster? Check out Tuner School where our classroom includes a chassis dyno cell and a 1/4 mile dragstrip - all on the Hennessey Performance campus!
979-885-1300 |


    • ShelbyDude1

      I had a Shelby GT500 with electronic cut-outs like yours. I had lots of fun messing with the noise cops in CA...that HPE850 is awesome. Great job, John.

      about 4 months ago
    • L Clarke
      L Clarke


      about 5 months ago
    • montefiveforty1

      The manual sucks,its a stone out of the hole as you can see the gear ratio is all wrong.

      about 6 months ago
    • Orb Amazed
      Orb Amazed

      I don't care about expensive cars lambos are cool but the hellcat had always been my dream car

      about 10 months ago
    • Jinge Liu
      Jinge Liu

      How much is the package

      about 1 year ago
    • Minalover100

      Man, you just hooked me...first video right out the box. I don't usually do this, but I just subscribed...Thanks...

      about 1 year ago
    • Felix Morales
      Felix Morales

      4:56 RIP my ears. you will be missed

      about 1 year ago
    • Evil One
      Evil One

      I love that car!! Yeah she's big but to drive everyday big is comfortable and she's not slow. I have a mustang and it's fun but after an hour in it I want out.

      about 1 year ago
    • SupraStringing11b

      Going from a Mercedes e-class, i think my charger hellcat has pretty amazing interior

      about 1 year ago
    • Scorpion MKX
      Scorpion MKX

      Sound so insane

      about 1 year ago
    • Scorpion MKX
      Scorpion MKX

      Im challenger hellcat fans because i look this hellcat soo insane. America made this car so amazing i like it. I from malaysia

      about 1 year ago

      Beat the piss out of it!! Quote of the week!!

      about 1 year ago
    • 79tazman

      Mopars Rule always have always will!!

      about 1 year ago
    • Corey Lee
      Corey Lee

      Hey John......let's start doing bikes, I'm trying to bump my zx14 into the beast of beasts!

      about 1 year ago
    • dano

      you said "methadone to our madness"????? just havin some fun here

      about 1 year ago
    • 240z drifter
      240z drifter

      I like this guy, seems very down to earth.

      about 2 years ago
    • Cyrus O Jones
      Cyrus O Jones

      The will exercise the Camero Exercist whaa haa haa and the Demon all ready of been gone wild wha ha ha ha ha ha haaaa😈

      about 2 years ago
    • ARNIE 69
      ARNIE 69

      That was a great video, awesome job on that Hellcat keep them coming

      about 2 years ago
    • Meguel Marshall
      Meguel Marshall

      great video, learned a few things and those upgrades are awesome. Keep up the hard work.

      about 2 years ago
    • Hemi power
      Hemi power

      How much ?

      about 2 years ago
    • Focal Nicko
      Focal Nicko

      The sky is beautiful

      about 2 years ago
    • Hussain Alharmoodi
      Hussain Alharmoodi

      I am a big fan from Dubai ..

      I am still confused of what to buy .. camaro ZL1 or a challenger hellcat ... 'please' an advise from you will be highly appreciated.

      about 2 years ago
    • Shiny Knife
      Shiny Knife

      I think the traction control was on the way it bogged

      about 2 years ago
    • Mfearless

      Too much hp? no one says that ever

      about 2 years ago
    • dmcepeda

      Your living room couch with a jet engine! ..and open road tv. I'd take it

      about 2 years ago
    • Jpkrao

      A ton of noise in this car.

      about 2 years ago
    • edward george
      edward george

      If only I could 😍😍😍😍😍😍

      about 2 years ago
    • Jboyz Hours
      Jboyz Hours

      I got charger Daytona 340 how much would it cost to put supercharged?

      about 2 years ago
    • blvk_thomasino

      Can you do the HPE1032 Hellcat?Love ur work! Thanks!

      about 2 years ago
    • D Rock
      D Rock

      I need one because the 7-11 is a quarter mile away. The wife will understand.

      about 2 years ago