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World class HEMI Tuning since 2008

Hemituner has been on the cutting edge of GEN III HEMI tuning since the beginning from the non-VVT 5.7L and 6.1L, to the VVT 5.7L and 6.4L, and now with the supercharged 6.2L HEMI powered vehicles. Our experience and knowledge on these platforms is unparalleled, when experts within this community need assistance problem solving they contact Hemituner Performance!

Featured Products
Recommended Parts
Hemituner Hellcat Based 426 HEMI Stroker Crate Engine
$18,325.53
Hemituner Hellcat Based 426 HEMI Stroker Crate Engine

HEMITUNER 7.0L 426 HEMI Crate EngineThe 6.2L, 378 CID to 426 CID HEMI crate engines are completely forged, and fully capable of handling... 

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Hemituner Performance Billet Valve Covers
$2,100.00
Hemituner Performance Billet Valve Covers

Hemituner Performance Billet Valve Covers give several advantages over OEM such as extra clearance, ease of service, crank case relief... 

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Hemituner Performance TCM
$395.00
Hemituner Performance TCM

HEMITUNER Transmission Control Module is our choice for an aggressive performance based TCM. The most noticeable change users will see... 

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Hemituner Performance Billet Differential (2015-2020)
$5,400.00
Hemituner Performance Billet Differential (2015-2020)

The Units are using Factory ZF internals that are in the end very durable given the Ring gear is a very robust 9 inch gear, not to... 

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Hemituner Performance Unlocked PCM 6.2
$849.00
Hemituner Performance Unlocked PCM 6.2

New Hellcat/Trackhawk Unlocked PCM (2015-2020)Buyer must enter their vehicle information in the drop down menus during checkout to... 

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++Gen 5 3.0 HELLCAT Supercharger++
$6,295.00
++Gen 5 3.0 HELLCAT Supercharger++

We are very excited to give you a preview of the brand new gen5 Whipple 3.0 for Hellcat. This unit crushes the competition with Billet... 

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About HEMITUNER
Factory drivability with 1000+ HP

There are many choices when it comes to the service or modification of your vehicle. Since 2008 I have been a part of this community and have a passion for these vehicles. I am excited to offer you true personalized service with the fringe benefits of being able to handle all of your custom tuning and performance part installation needs. Located in Long Island, NY with our performance partner True Street performance we are available 6 days a week for full service and consultation. There is no project too big for us and the results speak for themselves. Our meticulous attention to every detail means that your car will drive like it came off the show room floor, but with way more power than it originally had!

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HEMI Performance Parts

Are you looking for some serious HEMI performance parts? Then you’ve come to the right place. Hemituner Performance develops and carries some of the most popular parts on the HEMI market today!

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HEMI Supercharger

Looking to boost your late model HEMI’s horsepower? Experience shows HEMI supercharger kits are the best power-per-dollar option for the HEMI engine.

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HEMI Crate Engines

Hemituner Performance carries both stock Mopar engines and custom stroked out HEMI crate engines.

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Remote Tuning Available
Supporting DIY Installers