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Shop 6.4L Hemi

Unlock the full potential of your 6.4L Hemi, a naturally aspirated powerhouse known for its robust forged internals and strong factory performance. This 392 cubic inch V8 delivers impressive power and torque right out of the box, making it an ideal platform for enthusiasts looking to build reliable, high-performance Mopar machines. At FastHemis, you’ll find a wide range of parts tailored specifically for the 6.4L Hemi. Whether you’re aiming to boost power with supercharger kits, improve exhaust flow with long tube headers, or enhance throttle response with cold air intakes, our selection supports every stage of your build. These upgrades help maximize your engine’s capability while maintaining its legendary durability. Popular 6.4L Hemi upgrades include: - Supercharger and forced induction kits - High-flow exhaust systems and headers - Cold air intakes and throttle body upgrades - Tuners and performance calibration tools Shop 6.4L Hemi upgrades at FastHemis.
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6020 Results

Accel High Output Ignition Coils (8-Pack, Dual Plug): 2005 - 2025 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
Accel High Output Ignition Coils (8-Pack, Dual Plug): 2005 - 2025 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014

DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge 2005 - 2014

Diablo Sport

Regular price $818.95 $727.95 11% off

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Stainless Works Long Tube Headers & Mid Pipes: Dodge Durango 6.4L SRT 2018 - 2023
Stainless Works Long Tube Headers & Mid Pipes: Dodge Durango 6.4L SRT 2018 - 2023
usa

Stainless Works Long Tube Headers & Mid Pipes: Dodge Durango 6.4L SRT 2018 - 2023

Stainless Works

Regular price $2,795.00 $2,655.25 5% off

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HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021
HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS Silicone Radiator Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS
5.0 (1)

Regular price from $219.00 Up to 13% off

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3 colors
HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021
HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS Silicone Heater Hose Kit: Jeep Grand Cherokee 6.4L SRT 2012 - 2021

HPS
5.0 (1)

Regular price from $102.00 Up to 13% off

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3 colors
BMR 25mm Rear Sway Bar (Red): 300 / Challenger / Charger / Magnum 2005 - 2024
usa
American Brother Designs Master Cylinder Cap: Dodge Durango (16-25), Jeep Grand Cherokee (16-21)
American Brother Designs Master Cylinder Cap: Dodge Durango (16-25), Jeep Grand Cherokee (16-21)
usa

American Brother Designs Master Cylinder Cap: Dodge Durango (16-25), Jeep Grand Cherokee (16-21)

American Brother Designs

Regular price $109.00 $59.00 46% off

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American Brother Designs ABS Cover: Dodge Challenger / Charger 2015 - 2023
American Brother Designs ABS Cover: Dodge Challenger / Charger 2015 - 2023
usa

American Brother Designs ABS Cover: Dodge Challenger / Charger 2015 - 2023

American Brother Designs
5.0 (1)

Regular price $222.25 $169.00 24% off

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Eibach Special Edition Pro-Kit Springs: 18-23 Durango R/T 5.7L / SRT 392 / SRT Hellcat
Eibach Special Edition Pro-Kit Springs: 18-23 Durango R/T 5.7L / SRT 392 / SRT Hellcat

Eibach Special Edition Pro-Kit Springs: 18-23 Durango R/T 5.7L / SRT 392 / SRT Hellcat

Eibach
5.0 (1)

Regular price $554.44 $499.00 10% off

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Sto N Sho Quick Release Front License Plate Bracket: Dodge Durango SRT 2018 - 2025 (WITH Adaptive Cruise)
Sto N Sho Quick Release Front License Plate Bracket: Dodge Durango SRT 2018 - 2025 (WITH Adaptive Cruise)
usa

Sto N Sho Quick Release Front License Plate Bracket: Dodge Durango SRT 2018 - 2023 (WITH Adaptive Cruise)

StoNSho
5.0 (1)

Regular price $109.99 $97.99 11% off

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BC Racing BR Coilovers: Dodge Challenger / Charger Scat Pack, Hellcat & Demon 2015 - 2023
BC Racing BR Coilovers: Dodge Challenger / Charger Scat Pack, Hellcat & Demon 2015 - 2023

BC Racing BR Coilovers: Dodge Challenger / Charger Scat Pack, Hellcat & Demon 2015 - 2023

BC Racing
5.0 (1)

Regular price $1,314.50 $1,195.00 9% off

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Eibach Pro-Kit Lowering Springs: Jeep Grand Cherokee SRT 6.4L 2014 - 2021
Eibach Pro-Kit Lowering Springs: Jeep Grand Cherokee SRT 6.4L 2014 - 2021

Eibach Pro-Kit Lowering Springs: Jeep Grand Cherokee SRT 6.4L 2014 - 2021

Eibach

Regular price $472.22 $425.00 10% off

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Fuel Injector Clinic 775cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 775cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic
5.0 (2)

Regular price $864.00 $720.00 17% off

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Fuel Injector Clinic 650cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 650cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic

Regular price $819.60 $683.00 17% off

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S&B Cold Air Intake: Jeep Wrangler 6.4L 392 2021 - 2025
S&B Cold Air Intake: Jeep Wrangler 6.4L 392 2021 - 2025
usa

S&B Cold Air Intake: Jeep Wrangler 6.4L 392 2021 - 2025

S&B Filters

Regular price $429.99 $379.00 12% off

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2 filter types
  • Cotton Cleanable
  • Dry Extendable
Eibach Front Camber Kit (Arms): 300 / Challenger / Charger 2009 - 2024
Eibach Front Camber Kit (Arms): 300 / Challenger / Charger 2009 - 2024

Eibach Front Camber Kit (Arms): 300 / Challenger / Charger 2009 - 2023

Eibach
5.0 (2)

Regular price $651.11 $586.00 10% off

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per 

American Car Craft Factory Anti-lock Brake Cover "RT" Top Plate: Dodge Challenger 2015 - 2023
American Car Craft Factory Anti-lock Brake Cover "RT" Top Plate: Dodge Challenger 2015 - 2023
usa

American Car Craft Factory Anti-lock Brake Cover "RT" Top Plate: Dodge Challenger 2015 - 2023

American Car Craft

Regular price $55.95 $52.95 5% off

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DiabloSport Modified PCM + Trinity 2 Programmer Combo: Jeep Grand Cherokee 2015 - 2016 (5.7L Hemi & 6.4L SRT)
DiabloSport Modified PCM + Trinity 2 Programmer Combo: Jeep Grand Cherokee 2015 - 2016 (5.7L Hemi & 6.4L SRT)

DiabloSport Modified PCM + Trinity 2 Programmer Combo: Jeep Grand Cherokee 2015 (5.7L Hemi & 6.4L SRT)

Diablo Sport
5.0 (1)

Regular price $2,306.95 $2,049.95 11% off

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Pedal Commander Bluetooth Throttle Response Controller: 300 / Challenger / Charger / Magnum 2007 - 2024 (All Models)
Pedal Commander Bluetooth Throttle Response Controller: 300 / Challenger / Charger / Magnum 2007 - 2024 (All Models)
NOS Single Fogger Wet Nitrous Kit (Black Bottle): Chrysler / Dodge / Jeep / Ram V6 & V8 2005 - 2025
NOS Single Fogger Wet Nitrous Kit (Black Bottle): Chrysler / Dodge / Jeep / Ram V6 & V8 2005 - 2025
Eibach Pro-Damper Shocks: 300 / Challenger / Charger 2011 - 2024 (Except AWD)
Eibach Pro-Damper Shocks: 300 / Challenger / Charger 2011 - 2024 (Except AWD)

Eibach Pro Damper Kit (F&R): 11-23 Challenger / Charger / 300

Eibach

Regular price $776.67 $699.00 10% off

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Eibach Rear Camber Arm Kit: Dodge Durango (18-24) & Jeep Grand Cherokee (18-21)
Eibach Rear Camber Arm Kit: Dodge Durango (18-24) & Jeep Grand Cherokee (18-21)

Eibach Rear Camber Arm Kit: Dodge Durango (18-24) & Jeep Grand Cherokee (18-21)

Eibach
5.0 (2)

Regular price $554.44 $499.00 10% off

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per 

Bilstein B6 4600 Rear Shock (REAR): Jeep Grand Cherokee (11-21) / Dodge Durango (11-26)
Bilstein B6 4600 Rear Shock (REAR): Jeep Grand Cherokee (11-21) / Dodge Durango (11-26)

Bilstein B6 4600 Rear Shock (REAR): Jeep Grand Cherokee (11-21) / Dodge Durango (11-26)

Bilstein

Regular price $136.85 $92.00 33% off

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Spec D Projector Halo Headlights (Smoke): Dodge Charger 2011 - 2014
Spec D Projector Halo Headlights (Smoke): Dodge Charger 2011 - 2014

Spec D Projector Halo Headlights (Smoke): Dodge Charger 2011 - 2014

Spec D

Regular price $501.00 $371.00 26% off

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Performance Upgrades for Your 6.4L 392 Hemi

The 6.4L 392 Hemi is a naturally aspirated powerhouse known for its strong forged internals and high-flow cylinder heads. Delivering robust power and torque from the factory, it provides an excellent platform for enthusiasts aiming to enhance performance while maintaining reliability. At FastHemis, you’ll find parts designed specifically to unlock the full potential of this Mopar favorite.

Why upgrade performance parts on your 6.4L Hemi?

Upgrading your 6.4L Hemi’s components can significantly improve power delivery, throttle response, and overall engine efficiency. Whether you want to increase airflow with cold air intakes or extract more power through long tube headers and exhaust systems, these bolt-on upgrades complement the engine’s strong factory foundation. Enhancements also help tailor your build to specific driving styles and performance goals.

  • Improved air and exhaust flow for better combustion
  • Enhanced throttle response and engine sound
  • Supports future forced induction or camshaft upgrades
  • Maintains the engine’s legendary durability and reliability

Popular upgrade paths for the 6.4L 392 Hemi

The 6.4L Hemi responds well to a variety of performance modifications that suit naturally aspirated and boosted builds alike. Common upgrades include supercharger and procharger kits for substantial power gains, long tube headers to reduce exhaust backpressure, and cold air intakes to increase airflow. Tuners and performance calibration tools are also essential to optimize these modifications and ensure smooth operation.

Choosing the right 6.4L Hemi parts at FastHemis

FastHemis offers a comprehensive selection of performance parts tailored to the 6.4L 392 Hemi. Whether you’re starting with bolt-ons or planning a full build, our inventory supports every stage of your project. Browse our collection to find supercharger kits, exhaust upgrades, intake systems, and tuning tools designed to maximize your engine’s capability while preserving its durability.

SELECT YOUR VEHICLE