Shop 6.4L Hemi
Bestop Underseat Organizer (REAR): Jeep Wrangler 2007-2024 2.0L/3.6L/3.0L/3.8L/6.4L
Bestop
$49.99
- Unit price
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Bestop OE Replacement Quarter Window Tan Twill Clear (LEFT 2-DOOR): Jeep Wrangler JL 2018-2026 2.0L/3.6L
Bestop
$249.99
- Unit price
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Superlift Front Track Bar Braket Kit (any Lift): Jeep Wrangler JL 2018-2020
Superlift
$99.99
- Unit price
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Bestop Sun Targa Bikini Mesh (F&R): Jeep Gladiator 2020-2023 / Wrangler 2018-2025
Bestop
$119.99
- Unit price
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COMP Cams Conical Valve Spring Kit w/ Titanium Retainers: Fits most Hemi 5.7L
COMP Cams
$855.95
- Unit price
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Bestop JL Replacement Windows Tinted (QUARTER RH 4-DOOR): Jeep Wrangler JL 2018-2025 2.0L/3.6L
Bestop
$199.99
- Unit price
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Bestop OE Replacement Windows Rear 2-Door or 4-Door (FRONT): Jeep Wrangler JL 2018-2025 2.0L / 3.6L V6 - Black Twill Clear
Bestop
$269.99
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Baja Designs Steel Bumper LED Light Kit XL Sport (FRONT): Jeep Wrangler / Gladiator (18-26)
Baja Designs
$540.95
- Unit price
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EBC BSD Rear Brake Rotors: 300, Challenger, Charger, Magnum 6.1L SRT8 & 6.4L 392 2006 - 2024
EBC
Regular price
$510.37
$484.85
5% off
- Unit price
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Bestop Element Panels Front Doors (BLACK): Jeep Gladiator / Wrangler JL 2018-2026
Bestop
$349.99
- Unit price
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Bestop Element Doors Matte Black (FRONT): Jeep Gladiator 2021-23 / Wrangler JL 2018-25 2.0L/3.6L
Bestop
$549.99
- Unit price
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Bestop Full Fabric Doors (FRONT) Black Twill: Jeep Gladiator / Wrangler JL 2018-2026
Bestop
$899.99
- Unit price
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Baja Designs Squadron-R Sport 2.0 Fog Kit (FRONT): Jeep Wrangler / Gladiator 2018-2025 w/ OE Sahara Bumper - Clear
Baja Designs
$392.95
- Unit price
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Baja Designs Squadron-R Sport 2.0 Fog Kit (FRONT): Fits Jeep Gladiator / Wrangler 2018-2025 w/ Sport Bumper - Clear
Baja Designs
$392.95
- Unit price
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AVS Ventvisor Outside Mount Window Deflectors (F&R): Jeep Grand Cherokee 2011-2021 3.6L/5.7L - Chrome
AVS
$159.99
- Unit price
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AVS Ventvisor Outside Mount Window Deflectors (F&R): Jeep Grand Cherokee 2011-2021 3.6L/5.7L - Smoke
AVS
$69.99
- Unit price
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DBA Street Series Slotted Brake Rotor (FRONT): Fits Dodge/Chrysler 2005-2024
DBA
Regular price
$272.11
$230.25
15% off
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DBA Street Series Slotted Brake Rotor (FRONT): Fits Dodge / Chrysler 2005-2024 5.7L / 6.1L
DBA
Regular price
$303.36
$256.69
15% off
- Unit price
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WeatherTech FloorLiner Rear Floor Mats (Black): Ram 2500 & 3500 2019 - 2025 (w/ PTO)
WeatherTech
$121.95
- Unit price
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MBRP T304 Street to Race SS 3in Exhaust Conversion Kit: Fits Chrysler / Dodge (15-24) w/ Clamps
MBRP
Regular price
$191.46
$154.99
19% off
- Unit price
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Gates Locking Fuel Cap: Fits Most Chrysler / Dodge / Jeep / Ram Models (1994-2026)
Gates
$21.82
- Unit price
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Eagle Competition Rotating Assembly Kit: Fits Chrysler / Dodge / Jeep / Ram (02-26) 5.7L-6.4L HEMI
Eagle
$3,292.99
- Unit price
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Wilwood Slotted 13.50in Narrow Superlite 4R Rear Brake Kit (REAR): Jeep Gladiator / Wrangler (18-26)
Wilwood
Regular price
$2,479.08
$2,213.46
11% off
- Unit price
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Wilwood Slotted 13.50in Narrow Superlite 4R Rear Brake Kit (REAR): Jeep Gladiator / Wrangler (18-26)
Wilwood
Regular price
$2,479.08
$2,213.46
11% off
- Unit price
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AlphaRex LED Projector Fog Lights (Dual Color): Jeep Wrangler (18-25) / Gladiator (20-25)
AlphaRex
Regular price
$180.00
$160.00
11% off
- Unit price
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Husky Liners Black Front Floor Liners (FRONT): Jeep Grand Wagoneer / Wagoneer (22-24) - Black
Husky Liners
$109.99
- Unit price
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ORACLE Lighting High Powered LED Headlights (PAIR): Jeep Wrangler (18-24) / Gladiator (20-24)
ORACLE Lighting
$675.00
- Unit price
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Eagle Competition Rotating Assembly Kit: Fits Chrysler / Dodge / Jeep / Ram 5.7L-6.4L Hemi (02-26)
Eagle
$3,066.99
- Unit price
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Eagle Competition Rotating Assemblies Kit: Fits Chrysler / Dodge / Jeep / Ram 5.7L-6.4L Hemi
Eagle
$3,066.99
- Unit price
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AlphaRex 09-18 Dodge Ram 1500HD NOVA LED Projector Headlights Plank Style Design Gloss Black w/DRL
AlphaRex
Regular price
$1,585.00
$1,440.00
9% off
- Unit price
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Husky Liners OE Style 4-Piece Fender Flares: Ram 2500 (2019-2026) - Matte Black
Husky Liners
$379.99
- Unit price
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Air Lift Perf Rear Air Suspension Kit (REAR): Dodge Charger / Challenger / Chrysler 300 (11-23)
Air Lift
$1,070.99
- Unit price
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Air Lift Performance Front Air Suspension Kit: Dodge Charger (11-23) / Challenger (15-23)
Air Lift
$1,112.99
- Unit price
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AFE ROCK BASHER Cat-Back Exhaust System: Jeep Wrangler Rubicon 6.4L 392 2021 - 2025
aFe
$704.00
- Unit price
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Air Lift Loadlifter 5000 Ultimate Rear Air Spring Kit (REAR): Dodge Ram 2500 (14-17)
Air Lift
$621.99
- Unit price
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ICON 2.0 Series Aluminum Front Shocks (PAIR): Dodge Ram 2500 / Ram 3500 (03-13)
ICON
$195.65
- Unit price
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FOX Factory Race Series 3.0 Internal Bypass Rear Shocks Adjustable (REAR): Jeep Wrangler JL 2018-2026 2-3" Lift
FOX
$3,019.95
- Unit price
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Air Lift 1000 Rear Air Spring Kit 1000lb Load: Jeep Wrangler JL 2018-2026
Air Lift
$149.99
- Unit price
- /per
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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.