Custom Performance Engines

Service – Repair – Build – Race

Come See us for

Custom Performance Engine Builds & AUTO REPAIR

Adrenaline Performance specializes in a wide range of customizations for show cars to high performance race cars. We offer vehicle maintenance, and custom builds that gets your heart pumping! From suspension upgrades, exhaust overhauls, injecting serious horsepower under your hood and more. You’ll find expert care, professional service, and custom modifications to bring your dream build to life.

Adrenaline Performance LLC, based out of Jacksonville, Florida was founded in 2016. We are focused on high performance custom engine builds and after-market modifications. Get your vehicle show or race ready.  Fuel-injections, exhaust upgrades, and many more vehicle modifications.

What our Fans Say About Us

Dewey Straughn
Dewey Straughn
March 21, 2022.
Top notch professional service. Highly recommend! Also, Hyundais are turdbuckets for kids that live in their mom"s basement
December 11, 2021.
Ryan is awesome, very knowledgeable, friendly and genuine kind of guy. Did excellent work on my modified car.
Mike -
Mike -
September 14, 2021.
Those guys know their stuff! They got me rolling with the new suspension install. When at the shop all the guys were cool enough to answer any questions. Great place.
Josie Doughty
Josie Doughty
May 9, 2021.
I discovered Adrenaline Performance LLC on Facebook after noticing a lack of power in my 2012 MazdaSpeed3. Ryan took fantastic care of the car and he made the experience both educational and interactive. He was incredibly thorough with his work, making sure that no small issue would go overlooked. My car is running better than the day I got it. This was my very first experience with this business and I have already scheduled to return in order to upgrade my suspension.
May 6, 2021.
Awesome experience at this shop! Couldn’t be happier with the price and work I had done. Super nice guys for sure very friendly and helpful. I recommended them to all my friends here in South Georgia already because there aren’t many shops in our area that will do this work if they do they are never happy about it and the prices aren’t fair but Adrenaline is 100% worth the drive.

Built for what drives you

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We're car enthusiasts at heart and have a passion for performance builds. We service all makes and models and offer free consultations on after market upgrades and vehicle modifications.

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Built for performance

Custom Performance Engine Builds

Our expert technicians and modification team have years of experience and the trust of car enthusiasts. 

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Built to get your heart pumping

Build a Custom Quote

Fill out the custom quote below and we will get in touch with you for your next vehicle upgrade.

Get a Free Custom Quote

Get a custom build Quote

Complete the custom build form and one of our representatives will get in touch with you to schedule a consultation. All quotes are subject to the condition of the vehicle, maintenance, and existing work done. Quotes are contingent to the parts, time, and expected labor, but only serves as an estimate for total service.


Reach out to us for your questions. 

Get in touch with us about your next custom engine build.   We look forward to hearing from you.