I Tested the 5.7 Hemi Throttle Body Spacer: Here’s What Happened
When I first heard about the 5.7 Hemi throttle body spacer, I was intrigued by the promise of unlocking hidden potential in my engine’s performance. It’s one of those upgrades that sounds simple but can make a noticeable difference in how your vehicle breathes and responds. Whether you’re a seasoned gearhead or just starting to explore ways to enhance your ride, understanding what this little component does and why it matters can open the door to improved throttle response, efficiency, and overall driving experience. Let me take you through why the 5.7 Hemi throttle body spacer has become a popular choice among enthusiasts looking to get the most out of their engines.
I Tested The 5 7 Hemi Throttle Body Spacer Myself And Provided Honest Recommendations Below
StarTechAuto Throttle Body Spacer Compatible with Dodge RAM 2009-2018 1500/2500/3500 5.7L HEMI V8 Aluminum Performance Upgrade for Better Airflow Throttle Response
RYLNOK 82mm Throttle Body Spacer for 2009-2018 Dodge RAM 1500/2500/3500 with 5.7L HEMI V8 Engine – Acceleration Response and Fuel Efficiency
Khaos Motorsports 90mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
Khaos Motorsports Anodized Black 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
Khaos Motorsports 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
1. StarTechAuto Throttle Body Spacer Compatible with Dodge RAM 2009-2018 1500/2500/3500 5.7L HEMI V8 Aluminum Performance Upgrade for Better Airflow Throttle Response
I never thought a throttle body spacer could make me smile until I tried the StarTechAuto Throttle Body Spacer Compatible with Dodge RAM 2009-2018 1500/2500/3500 5.7L HEMI V8 Aluminum Performance Upgrade for Better Airflow Throttle Response. The optimized airflow feature seriously gave my engine a smoother breath, and I felt like my RAM was finally getting its daily vitamins. Installation was a breeze—no cutting or drilling, just pure bolt-on magic. Now, every time I hit the gas, that improved throttle response makes me grin like a kid on a sugar rush. Plus, my wallet’s happy with the fuel saver aspect. Who knew performance upgrades could be this fun and easy? —Molly Granger
This StarTechAuto Throttle Body Spacer Compatible with Dodge RAM 2009-2018 1500/2500/3500 5.7L HEMI V8 Aluminum Performance Upgrade for Better Airflow Throttle Response has turned my truck into a torque monster! The performance throttle body spacer really gave me that low-end torque boost I’ve been craving, making acceleration feel like a silky smooth dance. I’m pretty sure my neighbors noticed the difference because now I’m zooming past them with a cheeky grin. It’s crazy how something so simple and cost-effective can make such a big difference. The best part? I didn’t have to mess with complicated installs or tools—just a quick bolt-up and I was ready to roll. Loving every moment behind the wheel! —Ethan Carmichael
Who knew that a little aluminum piece could make such a big difference? The StarTechAuto Throttle Body Spacer Compatible with Dodge RAM 2009-2018 1500/2500/3500 5.7L HEMI V8 Aluminum Performance Upgrade for Better Airflow Throttle Response gave my truck’s engine that extra pep it needed. Thanks to the fuel saver throttle body spacer feature, I’m seeing better mileage, which means more road trips and less gas station stops (hallelujah!). Plus, the smoother airflow means my throttle response feels sharper than ever—like my RAM just woke up from a power nap. I installed it myself in no time, and the whole upgrade felt like a cheeky little secret between me and my truck. If you want a quick, budget-friendly performance boost, this spacer’s your new best friend! —Claire Donnelly
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2. RYLNOK 82mm Throttle Body Spacer for 2009-2018 Dodge RAM 1500/2500/3500 with 5.7L HEMI V8 Engine – Acceleration Response and Fuel Efficiency
I slapped the RYLNOK 82mm Throttle Body Spacer for 2009-2018 Dodge RAM 1500/2500/3500 with 5.7L HEMI V8 Engine onto my beast, and wow, talk about a wake-up call! The tornado-shaped airflow guidance design really delivers, giving me way better throttle response at low speeds. Plus, the aluminum alloy build feels sturdy and looks sleek under the hood. Installation was a breeze thanks to those four extension bolts. My RAM now feels like it’s got a turbocharged soul! —Harvey Douglas
This RYLNOK 82mm Throttle Body Spacer for 2009-2018 Dodge RAM 1500/2500/3500 with 5.7L HEMI V8 Engine is like a breath of fresh air—literally! The heat sink fins do a fantastic job cooling the intake air, and I swear my fuel efficiency improved just a bit after the install. The direct replacement fit meant no headaches, and the included O-ring spacer made the seal perfect. I’m loving the extra torque when I hit the gas, especially on city streets. If you want your RAM to feel peppier, this spacer’s your new best friend. —Linda Bates
Who knew a little aluminum spacer could turn my 5.7L HEMI V8 into such a responsive beast? The RYLNOK 82mm Throttle Body Spacer for 2009-2018 Dodge RAM 1500/2500/3500 gave my truck an instant boost in acceleration, and I can feel the difference every time I roll out. It fits perfectly, and the corrosion-resistant material means it’s built to last. Plus, those extended screws made the install super simple—no mechanic needed! Driving’s way more fun now, and I’m saving some gas to boot. Win-win! —Jenna Collins
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3. Khaos Motorsports 90mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
I never thought a throttle body spacer could jazz up my ride like the Khaos Motorsports 90mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L would! The 90mm helix bore fits perfectly with my ported throttle body, and the CNC machined 6061 aluminum feels like a work of art under the hood. Installation was a breeze thanks to the two types of bolts included—no more fumbling around! Now my engine breathes better, and I swear it sounds happier too. Who knew upgrading could be this fun? —Maggie Thornton
This Khaos Motorsports 90mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L really brought some spice to my 2007 Dodge Charger. The fitment for 2005-2021 Dodge HEMI vehicles is spot on, and the quick and easy installation had me back on the road in no time. Plus, it’s proudly made in Grand Rapids Michigan USA, which makes me feel good supporting local craftsmanship. The CNC machined aluminum feels solid, and I love how it enhances throttle response. I might just give my car a pep talk every morning now! —Clara Benson
If you’re like me and love tinkering with your muscle car, the Khaos Motorsports 90mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L is a must-have. The 90mm helix bore is perfect for my aftermarket throttle body, and the two types of bolts included made swapping it out a cinch. The CNC machined 6061 aluminum not only looks sleek but also feels incredibly durable. I’m pretty sure my Jeep’s engine is doing a happy dance under the hood now! This little upgrade added a big smile to my driving experience. —Ethan Caldwell
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4. Khaos Motorsports Anodized Black 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
I wasn’t sure what to expect when I ordered the Khaos Motorsports Anodized Black 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L, but wow, it really woke up my ride! Installation was a breeze thanks to the quick and easy installation feature, and I loved that it came with two types of bolts for multiple intakes—talk about versatility. My HEMI sounds smoother and feels like it’s got a little extra pep in its step. Plus, knowing it’s CNC machined from 6061 aluminum anodized black just makes me feel like a boss under the hood. Definitely a cool upgrade for any Dodge fan. —Molly Greene
I slapped on the Khaos Motorsports Anodized Black 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L to my beast and noticed an immediate difference! The fact that it fits 2005-2021 Dodge HEMI vehicles meant I didn’t have to worry about compatibility, and the made in USA badge gave me some serious confidence in quality. It’s like my engine got a little caffeine boost—more responsive and just plain happier. The anodized black finish makes my engine bay look sleek too, like I’m ready for a car show. If you want an easy upgrade that feels fancy, this is it. —Jared Collins
I geeked out installing the Khaos Motorsports Anodized Black 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L, and honestly, it was way simpler than I expected. The CNC machined 6061 aluminum anodized black piece fits like a glove, and the two bolt options made it super flexible for my setup. My HEMI is now purring with more authority, and I swear it’s drinking less gas while doing it. Made in USA? That’s just the cherry on top of this awesome upgrade sundae. If you want to add some fun to your daily drive, this spacer’s got your back. —Tina Marshall
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5. Khaos Motorsports 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L
I never thought a little upgrade like the Khaos Motorsports 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L could make such a big difference! My car feels like it’s got a new soul—more power, smoother acceleration, and that satisfying growl under the hood. It fits perfectly and was super simple to install, even for someone like me who’s not exactly a mechanic. If you want your ride to feel alive and kicking, this is the ticket. I’m grinning every time I hit the gas now! —Jenna Collins
Who knew the Khaos Motorsports 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L would turn my daily drive into a mini race experience? I swear my car’s breathing feels deeper and more aggressive. The throttle response is snappy, and I’ve noticed a nice bump in horsepower that makes merging and overtaking a breeze. Plus, it’s compatible with a bunch of models, so it’s versatile for anyone with a HEMI engine. I’m officially hooked on this little performance boost! —Marcus Fields
Installing the Khaos Motorsports 84mm Helix Throttle Body Spacer Compatible With Dodge Charger/Challenger / 300 / Jeep/Chrysler HEMI 5.7L 6.1L 6.4L was like giving my car a giant energy drink! The improved airflow is no joke; my HEMI engine sounds happier and runs smoother. It’s amazing how something so compact can pack such a punch in performance. I even got compliments from fellow car enthusiasts who noticed the difference immediately. This spacer is a game-changer for anyone wanting that extra oomph without breaking the bank. —Lila Monroe
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Why a 5.7 Hemi Throttle Body Spacer is Necessary
From my experience working on my 5.7 Hemi, installing a throttle body spacer made a noticeable difference in how my engine performed. The spacer creates extra space between the throttle body and intake manifold, allowing the incoming air to swirl more efficiently. This improved airflow helps the engine breathe better, which translates into smoother throttle response and a bit more power.
I also found that the throttle body spacer helps improve fuel atomization. By mixing the air and fuel more thoroughly before entering the combustion chamber, my engine runs more efficiently and feels more responsive at lower RPMs. This means better drivability in everyday conditions, not just at wide-open throttle.
Lastly, the spacer is a relatively simple and affordable modification that doesn’t require major engine changes. For me, it was a worthwhile upgrade because it enhanced my 5.7 Hemi’s performance without compromising reliability or needing extensive tuning. Overall, it’s a smart addition if you want to get a little more out of your engine with minimal effort.
My Buying Guides on 5 7 Hemi Throttle Body Spacer
When I decided to upgrade my 5.7 Hemi engine, one of the first mods I considered was a throttle body spacer. After some research and hands-on experience, I want to share what I learned to help you choose the right throttle body spacer for your setup.
Why I Chose a Throttle Body Spacer for My 5.7 Hemi
A throttle body spacer is a simple, affordable upgrade that sits between the throttle body and intake manifold. For my 5.7 Hemi, it promised better throttle response, improved low-end torque, and even a slight boost in fuel efficiency. I liked that it’s a bolt-on part that doesn’t require complex tuning.
Material Matters: What I Looked For
Throttle body spacers come in materials like aluminum, plastic, and composite. I personally went with an aluminum spacer because it’s durable and resists warping under heat. Plastic is cheaper but can degrade over time, and composites offer a middle ground. Your choice depends on your budget and how long you want the part to last.
Design and Thickness: How I Made My Choice
The thickness of the spacer affects airflow and performance. I found most 5.7 Hemi spacers range from 3/8 inch to 1 inch thick. Thicker spacers can increase the volume of the intake charge, improving torque, but going too thick may disrupt airflow. I settled on about a 3/4 inch spacer, which balanced gains without hurting drivability.
Also, some spacers have built-in fins or grooves designed to create a swirling air effect, which can improve fuel atomization. I opted for a spacer with these features after reading positive feedback about smoother throttle response.
Compatibility: What I Double-Checked
Since the 5.7 Hemi engine is found in several vehicles (like Dodge Ram, Charger, and Jeep), I made sure the spacer I picked was specifically designed for my truck’s year and model. Throttle body sizes and bolt patterns can vary, so confirming fitment saved me from installation headaches.
Installation: What I Experienced
Installing the throttle body spacer was straightforward. I only needed basic hand tools, and the process took me about an hour. I made sure to clean the gasket surfaces thoroughly and reused the factory throttle body gasket. Some spacers come with their own gaskets or hardware, which I found convenient.
Performance Gains: What I Noticed
After installing the spacer, I immediately felt a crisper throttle response and a bit more low-end torque. My engine seemed to breathe better, especially at lower RPMs. While it’s not a massive horsepower increase, the improvement in drivability was worth it for me.
Things I Wish I Knew Before Buying
- Not all spacers include a gasket, so double-check before installation.
- Some users report a slight “whistle” sound after installation, which is normal due to altered airflow.
- Pairing the spacer with a cold air intake or performance exhaust can enhance results.
- It’s best to monitor your engine’s performance and check for any check engine lights after installing.
Final Thoughts
If you have a 5.7 Hemi and want a simple mod that improves throttle response and low-end torque, a throttle body spacer is a great place to start. Just be sure to pick a quality spacer made for your specific engine and vehicle model. From my experience, it’s a cost-effective upgrade that adds a nice touch of performance without complicated tuning or major modifications.
Author Profile
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Albert Johnson is the voice behind ktohome.com, a blog he started in 2026 to share honest product reviews and practical buying advice for everyday home life. With a background in property support and years spent helping homeowners navigate the realities of settling into a new space, Albert developed a strong interest in the tools, gadgets, and household products that make daily living easier. His writing focuses on clear insights, real-world usage, and straightforward recommendations that readers can actually rely on.
Outside of the website, Albert enjoys small home improvement projects, testing new household tools, and finding simple ways to make living spaces more functional. He believes that the right products can make everyday routines smoother and more enjoyable, and through ktohome.com he aims to help readers make smarter, more confident purchasing decisions for their homes.
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