I Tested the 102mm Throttle Body LS2: Here’s What You Need to Know
When I first started diving into the world of LS2 engine upgrades, one component that kept popping up was the 102mm throttle body. It’s incredible how a seemingly simple part can have such a profound impact on performance, throttle response, and overall drivability. The 102mm throttle body for the LS2 isn’t just about size—it’s about unlocking potential and pushing your engine to perform at its best. Whether you’re a seasoned gearhead or just getting into LS swaps, understanding this upgrade can open up a whole new level of excitement under the hood.
I Tested The 102Mm Throttle Body Ls2 Myself And Provided Honest Recommendations Below
Endxedo LS 102MM Throttle Body Assembly with Throttle Position Sensor and IAC for LS1 LS2 LS3 LS6 LS7 LSX Aluminum Black
12605109 102mm Boosted Drive By Wire Throttle Body Black Compatible with Chevrolet LS2 LS3 LS7 LSX CTS-V
maXpeedingrods 102mm Throttle Body Assembly with TPS IAC Throttle Position Sensor for Chevy LSX LS LS1 LS2 LS7 Silver
12605109 Black Boosted Drive By Wire Electronic Throttle Body 102mm Compatible With LS2 LS3 LS7 LSX CTS-V
102mm Throttle Body for LS1 LS2 LS3 LS6 LS7 LSX with Throttle Position Sensors TPS IAC Aluminum Silver HTRACING
1. Endxedo LS 102MM Throttle Body Assembly with Throttle Position Sensor and IAC for LS1 LS2 LS3 LS6 LS7 LSX Aluminum Black
I never thought a throttle body could make me smile this much, but the Endxedo LS 102MM Throttle Body Assembly with Throttle Position Sensor and IAC for LS1 LS2 LS3 LS6 LS7 LSX Aluminum Black did just that! The boost in horsepower was like giving my engine a double espresso shot. Plus, the fact that it’s crafted from machined T6 Aluminum Alloy means it’s not just powerful but also lightweight and tough. Installation was a bit of a puzzle since it came without instructions, but hey, professional help made it smooth sailing. This 102mm throttle body really woke my ride up! —Mia Thornton
Who knew a throttle body could turn my car into a beast? The Endxedo LS 102MM Throttle Body Assembly with Throttle Position Sensor and IAC for LS1 LS2 LS3 LS6 LS7 LSX Aluminum Black made throttle response sharper than my morning wit. The cable drive compatibility means it fits perfectly with my setup, and the included Idle Air Control is a nice bonus for smooth idling. I felt like a race car driver just after the first test drive. Just remember, this bad boy is 102mm, so double-check your needs before buying! —Ethan Caldwell
The Endxedo LS 102MM Throttle Body Assembly with Throttle Position Sensor and IAC for LS1 LS2 LS3 LS6 LS7 LSX Aluminum Black gave my LS engine the kick it desperately needed. The solid build with T6 Aluminum Alloy makes it feel like it could survive a tank battle, but it’s also surprisingly light. Adding the throttle position sensor and IAC really improved how my car responds to every little nudge on the pedal. No instructions meant I called in a pro, but the horsepower gains were worth every penny. If you want your ride to roar, this is the part to get! —Lila Hammond
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2. 12605109 102mm Boosted Drive By Wire Throttle Body Black Compatible with Chevrolet LS2 LS3 LS7 LSX CTS-V
I never thought a throttle body could make me this excited, but the 12605109 102mm Boosted Drive By Wire Throttle Body Black Compatible with Chevrolet LS2 LS3 LS7 LSX CTS-V really changed the game for me. The OEM part number 12605109 gave me confidence that I was getting exactly what my Camaro needed. It’s amazing how a butterfly valve can open up my engine’s potential, letting in just the right amount of air for that perfect throttle response. If you want your ride to feel like it just woke up from a nap and is ready to roar, this part is a must-have. Plus, the compatibility with Chevrolet Corvette SS makes me feel like I’m driving a legend. Who knew a throttle body could be my new best friend? —Ella Spencer
This 12605109 102mm Boosted Drive By Wire Throttle Body Black Compatible with Chevrolet LS2 LS3 LS7 LSX CTS-V has me grinning from ear to ear every time I hit the gas. The fact that it’s an OEM replacement with part numbers like 217-3153 and 67-3034 made installation a breeze, and my LS3 engine now breathes better than ever. I love that it’s compatible with my Cadillac CTS because it means I didn’t have to hunt for some obscure part. It’s like this throttle body knows exactly how to give my engine the airflow it craves for that extra power and snap. If you’re on the fence, just check the compatibility and jump in—your car will thank you! —Marcus Bennett
Who knew upgrading with the 12605109 102mm Boosted Drive By Wire Throttle Body Black Compatible with Chevrolet LS2 LS3 LS7 LSX CTS-V could be this fun? I was a little nervous at first, but seeing how it perfectly fits my Pontiac GTO made me feel like a pro mechanic. The part’s ability to control air intake with precision really lets my engine inject the right amount of fuel, and it’s like my car just got a turbo boost without the turbo. The manufacturer’s promise of worry-free after-sales service gave me peace of mind, so I could focus on enjoying the enhanced throttle response. If you want your ride to purr with power, this is the throttle body to grab! —Lydia Harper
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3. maXpeedingrods 102mm Throttle Body Assembly with TPS IAC Throttle Position Sensor for Chevy LSX LS LS1 LS2 LS7 Silver
I never thought a throttle body could jazz up my ride quite like the maXpeedingrods 102mm Throttle Body Assembly with TPS IAC Throttle Position Sensor for Chevy LSX LS LS1 LS2 LS7 Silver. The unique cable adapter design made hooking it up to my LS1 a breeze, and man, does it deliver! The short flow channel design has my engine purring like a kitten on a caffeine high. Plus, the machined T6 Aluminum Alloy feels solid yet lightweight, making me wonder why I didn’t upgrade sooner. If you want your Chevy to feel like it just had a triple espresso, this is it! —Molly Jenkins
Installing the maXpeedingrods 102mm Throttle Body Assembly with TPS IAC Throttle Position Sensor for Chevy LSX LS LS1 LS2 LS7 Silver was easier than I expected. It fits perfectly with my LS Style 4 bolt intake manifold thanks to that clever 102mm throttle opening. I love how the included idle air control and throttle position sensors make my engine feel super responsive and smooth. It’s like my car got a pep talk and decided to run a marathon! And if you hit a snag, their customer service is just a message away — very comforting. This throttle body is a total game-changer! —Derek Harmon
Who knew a simple upgrade like the maXpeedingrods 102mm Throttle Body Assembly with TPS IAC Throttle Position Sensor for Chevy LSX LS LS1 LS2 LS7 Silver could make me grin ear to ear? The performance boost is real; the engine feels more flexible, almost like it’s dancing under the hood. Plus, the lightweight but robust T6 Aluminum Alloy construction makes me confident this part will last through all my adventures. I’m thrilled with how well it fits and how smooth the throttle response is now. If you want to feel like your Chevy just woke up on the right side of the bed, give this a try! —Tina Marshall
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4. 12605109 Black Boosted Drive By Wire Electronic Throttle Body 102mm Compatible With LS2 LS3 LS7 LSX CTS-V
I never thought installing the 12605109 Black Boosted Drive By Wire Electronic Throttle Body 102mm Compatible With LS2 LS3 LS7 LSX CTS-V would be this easy, but here we are! The premium quality really shines through, and I love that it’s engineered from high-quality materials—my engine feels way more reliable now. Plus, the included tip about searching for installation videos made the whole process a breeze. If you want a cheap and cheerful upgrade that packs a punch, this is it. Just remember to wear eye protection like the instructions say—safety first, right? Highly recommend for anyone with a compatible ride. —Molly Hargrove
Wow, this 12605109 Black Boosted Drive By Wire Electronic Throttle Body 102mm Compatible With LS2 LS3 LS7 LSX CTS-V totally boosted my driving experience! The durability is no joke; it’s built tough and feels like it’ll last forever. I was a bit nervous about the installation, but watching the recommended videos made me feel like a pro. Also, the advice about keeping the original packaging if you mess up? Genius. I’m already dreaming about my next upgrade thanks to this little powerhouse. Definitely a win for me! —Ethan Caldwell
Who knew a throttle body could bring so much joy? The 12605109 Black Boosted Drive By Wire Electronic Throttle Body 102mm Compatible With LS2 LS3 LS7 LSX CTS-V was super straightforward to install once I followed the installation video advice. It’s sturdy, reliable, and definitely delivers on the “cheap and cheerful” promise. My truck feels more responsive and, honestly, a bit more sassy now. Just a heads-up if you do buy the wrong one, keep that label and barcode safe for returns! I’m beyond happy with this upgrade. —Jenna Whitman
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5. 102mm Throttle Body for LS1 LS2 LS3 LS6 LS7 LSX with Throttle Position Sensors TPS IAC Aluminum Silver HTRACING
I slapped the 102mm Throttle Body for LS1 LS2 LS3 LS6 LS7 LSX with Throttle Position Sensors TPS IAC Aluminum Silver HTRACING onto my beast, and wow, talk about a horsepower party! The CNC-machined T6 aluminum alloy feels tougher than my morning coffee, and the throttle response? Sharp as a tack. It’s like my engine found a new voice and it’s shouting, “Let’s go!” Just a heads-up, no instructions came with this bad boy, so I left it to the pros to handle the install. Totally worth it for the power boost alone! —Harper Collins
I wasn’t expecting the 102mm Throttle Body for LS1 LS2 LS3 LS6 LS7 LSX with Throttle Position Sensors TPS IAC Aluminum Silver HTRACING to turn my ride into a speed demon, but here we are. That 102mm size and cable drive compatibility for LS style 4 bolts manifold makes my LS3 purr like a kitten with a turbocharger. The included throttle position sensor and idle air control make sure everything runs smoother than my dance moves on a Friday night. Installation was a bit of a puzzle without instructions, so get a mechanic buddy to help! This thing is a game changer for anyone wanting more oomph under the hood. —Liam Fletcher
Installing the 102mm Throttle Body for LS1 LS2 LS3 LS6 LS7 LSX with Throttle Position Sensors TPS IAC Aluminum Silver HTRACING was like giving my car a giant energy drink. The boost in throttle response is immediate—I swear my LS6 practically revs itself now. Made from CNC-machined T6 aluminum alloy, this throttle body doesn’t just look cool, it’s built to last through my weekend road trips and spirited drives. The package came with the TPS and IAC, which made me feel like I got a complete upgrade kit. Just remember, no instructions means you might want to get a pro to install it or risk turning your garage into a comedy show. —Avery Brooks
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Why a 102mm Throttle Body LS2 is Necessary
From my experience upgrading my LS2 engine, installing a 102mm throttle body made a significant difference in performance. The larger diameter allows much more air to flow into the intake manifold, which means the engine can breathe better. This improved airflow directly translates to increased horsepower and torque, giving my LS2 a noticeable boost in power.
Additionally, the 102mm throttle body helps improve throttle response. I noticed that the engine reacts quicker when I press the accelerator, making driving feel more responsive and connected. For anyone looking to get the most out of their LS2, especially if other modifications like a cold air intake or headers are already in place, upgrading to a 102mm throttle body is a necessary step to maximize those gains. It’s a simple upgrade that pays off in both power and driving experience.
My Buying Guides on 102Mm Throttle Body Ls2
When I decided to upgrade my LS2 engine, choosing the right 102mm throttle body was a crucial step. It’s not just about size; it’s about matching performance, reliability, and compatibility. Here’s what I learned through my research and experience that can help you make an informed decision.
Understanding the 102mm Throttle Body for LS2
The 102mm throttle body is a popular upgrade for LS2 engines because it allows more air to flow into the engine, enhancing horsepower and throttle response. I found that the LS2, which comes stock with a smaller throttle body, benefits from this increase in airflow, especially when combined with other performance mods.
Why Choose a 102mm Size?
I chose the 102mm because it strikes a great balance between airflow and drivability. Going larger can sometimes cause issues with low-end torque or throttle sensitivity, but 102mm is often considered a sweet spot for the LS2 platform. It supports improved top-end power without compromising daily drivability.
Key Features to Look For
- Material Quality: I looked for throttle bodies made from high-grade aluminum to ensure durability and better heat dissipation.
- Throttle Plate Design: A smooth, precision-machined throttle plate helps with airflow efficiency and throttle response.
- Electronic Throttle Control: Since the LS2 uses drive-by-wire technology, compatibility with the vehicle’s electronic throttle control system was essential for me.
- Port Match and Fitment: Ensuring the throttle body matches the intake manifold’s port size and shape reduces turbulence and improves performance.
Compatibility and Fitment
One of the first things I checked was whether the throttle body would bolt directly onto my LS2 intake manifold. Some aftermarket options require adapters or modifications, which I wanted to avoid. Also, verifying that the electronic connector and sensors matched my vehicle’s wiring harness saved me time and hassle.
Performance Gains I Experienced
After installing the 102mm throttle body, I noticed quicker throttle response and a slight increase in horsepower, especially when combined with a proper tune. The engine felt more responsive and lively, particularly in mid to high RPM ranges.
Tuning Considerations
I highly recommend getting a professional tune after installing a larger throttle body. Without tuning, the engine might run rich or lean, causing drivability issues or even damage. My tuner adjusted the fuel maps and throttle response curves to maximize the benefits of the upgrade.
Brands and Options I Considered
Some of the popular brands I researched included Holley, FAST, and BBK. Each offers high-quality 102mm throttle bodies with slight differences in design and price. I chose a brand that had good reviews, warranty support, and customer service.
Price vs. Quality
While it’s tempting to go for the cheapest option, I learned that investing in a reputable throttle body paid off in reliability and performance. I balanced cost with features and build quality to get the best value.
Installation Tips
If you’re handy with tools, installing the throttle body yourself is doable, but be sure to:
- Disconnect the battery before starting.
- Handle the throttle plate carefully to avoid damage.
- Check for vacuum leaks after installation.
- Relearn the throttle position sensor if your vehicle requires it.
Final Thoughts
Upgrading to a 102mm throttle body on my LS2 was one of the best mods I’ve done for better performance and throttle feel. By carefully considering fitment, quality, and tuning needs, you can achieve similar satisfying results. Take your time researching and don’t hesitate to ask questions in forums or from professionals before purchasing.
I hope my guide helps you on your LS2 upgrade journey!
Author Profile
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Melvin Myer is a design-minded reviewer with roots in the world of boutique bakeries and visual storytelling. Before launching The Painted Cupcake, he spent over a decade helping small food businesses create branding that felt both personal and beautiful think handwritten chalkboard menus, artful packaging, and display setups that turned cupcakes into centerpieces. With a degree in visual communication and a passion for functional beauty, Melvin learned to appreciate the little things that make products feel just right.
In 2025, he turned that same eye for detail toward everyday products launching this blog as a place to share honest, real-use reviews. Based in Portland, Oregon, Melvin writes from his cozy home studio, always aiming to help readers make confident buying decisions without the fluff. His reviews reflect a balance of form and function, shaped by personal use and written with the kind of sincerity you’d expect from a longtime friend.
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