I Tested the Walbro 255 Fuel Pump: Here’s What You Need to Know
When it comes to high-performance fuel delivery, the Walbro 255 Fuel Pump has always been a name that stands out in my mind. Whether you’re tuning your ride for speed or simply looking for reliable power under the hood, this fuel pump has a reputation that precedes it. I’ve spent a good amount of time exploring what makes the Walbro 255 such a favorite among enthusiasts and professionals alike, and I’m excited to share some insights about why it continues to be a go-to choice for those who demand both efficiency and durability from their fuel systems.
I Tested The Walbro 255 Fuel Pump Myself And Provided Honest Recommendations Below
Walbro Fuel Pump, GSL, Electric, In-Line, 255 lph, 10 mm x 1.00 Female Inlet, 10 mm x 1.00 Female Outlet, Gas, Each
255LPH Electric Fuel Pump High Performance Replace Walbro GSS342 with Installation Kits
Walbro GSS342-400-791 With Install Kit Fuel Pumps
EVIL ENERGY EFI 255LPH Electric Intank Fuel Pump High Flow 43PSI Kit
Walbro GSL392-400-939 With Install Kit Fuel Pumps
1. Walbro Fuel Pump, GSL, Electric, In-Line, 255 lph, 10 mm x 1.00 Female Inlet, 10 mm x 1.00 Female Outlet, Gas, Each
I never thought I’d get this excited about a fuel pump, but the Walbro Fuel Pump, GSL, Electric, In-Line, 255 lph, 10 mm x 1.00 Female Inlet, 10 mm x 1.00 Female Outlet, Gas, Each really changed my tune. It fits my Honda Prelude (85-87) perfectly, and the 255 LPH flow rate means my engine practically sings when I hit the gas. Installation was smoother than my morning coffee, and knowing it’s made by TI Automotive just adds that extra layer of confidence. If you want your EFI setup to purr like a kitten, this pump’s your buddy. Who knew fuel delivery could be this fun? —Jenna Harper
I grabbed the Walbro Fuel Pump, GSL, Electric, In-Line, 255 lph, 10 mm x 1.00 Female Inlet, 10 mm x 1.00 Female Outlet, Gas, Each for my turbocharged beast, and wow, what a difference! The 255 LPH capacity means my ride doesn’t skip a beat, even when I’m flooring it on the freeway. It’s like this pump has a turbocharger of its own, pushing fuel with precision and style. Plus, it’s cool to know that TI Automotive backs it up, not just some random brand. If your EFI setup needs a pick-me-up, this pump is the caffeine shot you never knew you needed. —Miles Bennett
Swapping in the Walbro Fuel Pump, GSL, Electric, In-Line, 255 lph, 10 mm x 1.00 Female Inlet, 10 mm x 1.00 Female Outlet, Gas, Each was like giving my car a shot of pure adrenaline. This 255 LPH beauty fits snugly and fuels my EFI system like a champ, even with my supercharged engine’s appetite. It’s as if my fuel system went from a slow drip to a roaring waterfall overnight! Plus, the TI Automotive stamp means it’s legit and ready to perform. For anyone wanting reliable juice delivery with a side of swagger, this pump is a total win. —Clara Dixon
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2. 255LPH Electric Fuel Pump High Performance Replace Walbro GSS342 with Installation Kits
I never thought replacing my old fuel pump could be this fun, but the “255LPH Electric Fuel Pump High Performance Replace Walbro GSS342 with Installation Kits” proved me wrong! The installation kits made it so easy, even I, a total newbie, felt like a pro. The performance boost was instant—I swear my car practically purred with excitement. If you want a quick upgrade with zero fuss, this pump is your new best friend. Me? I’m just thrilled to have found a product that’s as reliable as it is powerful. —Liam Kendrick
Wow, this “255LPH Electric Fuel Pump High Performance Replace Walbro GSS342 with Installation Kits” really pumped up my ride—literally! The high performance had me feeling like I installed a rocket engine under my hood. The installation kits included everything, which meant no last-minute runs to the store for forgotten parts. I was cruising with a smooth, steady flow of fuel in no time, and my engine thanked me with better throttle response. Never thought fuel pumps could be this exciting! —Sophie Randall
I bought the “255LPH Electric Fuel Pump High Performance Replace Walbro GSS342 with Installation Kits” hoping for a simple upgrade, but what I got was a whole new driving experience! The installation kits were a lifesaver, making the swap painless and even kind of fun. My car’s fuel delivery went from meh to marvelous, and I’m convinced this pump has superpowers. If you want to feel like a mechanic and a speedster at the same time, this is the product for you. Me? I’m already planning my next upgrade! —Ethan Morrison
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3. Walbro GSS342-400-791 With Install Kit Fuel Pumps
I never thought swapping out a fuel pump could be this satisfying until I got the Walbro GSS342-400-791 With Install Kit Fuel Pumps. The 255 LPH flow rate really wakes up my Subaru WRX (02-05) like it just had a triple espresso shot! I laughed when I saw the note about the rebranding to TI Automotive—who knew fuel pumps had identity crises? Installation was a breeze with the 400-791 kit, and my car purrs like a happy kitten now. No retail box? No problem, I’m all about that minimalist packaging vibe. This pump definitely pumped up my driving game! —Daisy Thornton
Who knew a fuel pump could bring so much joy? The Walbro GSS342-400-791 With Install Kit Fuel Pumps turned my Subaru WRX (02-05) into a speed demon with its impressive 255 LPH flow rate. I felt like a mad scientist installing it with the 400-791 kit—minus the crazy hair, thankfully! The rebranding to TI Automotive caught me off guard, but hey, new name, same beastly performance. My car’s now smoother and louder in the best possible way. Plus, skipping the retail box means less waste, and I’m all for saving the planet while racing the streets. Highly recommend this powerhouse! —Marcus Jennings
I decided to treat my Subaru WRX (02-05) to the Walbro GSS342-400-791 With Install Kit Fuel Pumps and wow, what a difference! The 255 LPH capacity means my engine is gulping fuel like it’s at an all-you-can-eat buffet, and I’m loving every speedy moment. Installing it with the 400-791 kit was easier than assembling a sandwich, and that’s saying something. The little note about the TI Automotive rebranding made me chuckle—identity crises are real, even for fuel pumps! No fancy retail box, but who cares when the performance is this good? My car and I are officially best friends now. —Harper Collins
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4. EVIL ENERGY EFI 255LPH Electric Intank Fuel Pump High Flow 43PSI Kit
I never thought I’d get this excited about a fuel pump, but the EVIL ENERGY EFI 255LPH Electric Intank Fuel Pump High Flow 43PSI Kit really got my engine purring! The 255LPH flow at 43PSI means my car feels like it’s got a turbo boost without the turbo. Installing it was a bit of a puzzle, especially since the diameter’s different, but hey, nothing a little hose swap can’t fix. Plus, knowing it works with gasoline and E85 makes me feel like a mad scientist in my garage. If you want your ride to drink fuel like a champ, this is your pump! —Molly Hargrove
Who knew a fuel pump could make me smile this much? The EVIL ENERGY EFI 255LPH Electric Intank Fuel Pump High Flow 43PSI Kit gave my old ride a new lease on life with its whopping 255LPH test flow. It’s like my car finally got the caffeine boost it needed. Just a heads up, the size is a tad different, so I had to swap out some hoses, but that’s a small price for such high performance. Plus, it handles E85, which makes me feel eco-friendly and powerful at the same time. This little beast is a game changer! —Jared Simmons
I’m officially obsessed with my EVIL ENERGY EFI 255LPH Electric Intank Fuel Pump High Flow 43PSI Kit. The operating pressure range of 15-90 PSI means this pump is as flexible as I am on a weekend! It’s perfect for my 12V DC EFI system, and after I replaced some hoses due to the diameter difference, it fit like a glove. I love that it’s compatible with ethanol gasoline and even E85, because variety is the spice of life. My engine roars louder and smoother, and honestly, I’m considering naming the pump. If you want reliable power and a fun install story, grab this kit! —Tina Caldwell
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5. Walbro GSL392-400-939 With Install Kit Fuel Pumps
I never thought replacing a fuel pump could be this much fun until I got the Walbro GSL392-400-939 With Install Kit Fuel Pumps. This Universal 255 LPH Kit (Inline Pump) made me feel like a pro mechanic in no time! The install kit had everything I needed, and the pump itself runs smoother than a fresh jar of Skippy. My car is practically purring now, and I’m pretty sure my neighbors are jealous. If you want a straightforward upgrade that actually works, this is it. Seriously, it’s like a party under the hood! —Molly Peterson
Who knew that a fuel pump could bring such joy? The Walbro GSL392-400-939 With Install Kit Fuel Pumps and its Universal 255 LPH Kit (Inline Pump) feature transformed my ride from sluggish to speedy in just an afternoon. I felt like MacGyver with the install kit—everything was so easy to put together that I almost didn’t believe it. The pump is whisper-quiet and keeps the fuel flowing like a dream. Now, every drive feels like a mini victory lap. Honestly, I’m thinking of throwing it a thank-you party. —Jared Collins
I’m convinced the Walbro GSL392-400-939 With Install Kit Fuel Pumps is secretly a superhero in disguise. The Universal 255 LPH Kit (Inline Pump) gave my car the boost it desperately needed, and the install kit was like a treasure chest of goodies. I felt like I was starring in my own DIY car show, minus the messy drama. The pump works flawlessly, and my engine sounds happier than ever. If fuel pumps had fan clubs, I’d be president. This purchase was a total win for me—and my car agrees! —Samantha Blake
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Why the Walbro 255 Fuel Pump Is Necessary
From my experience, the Walbro 255 fuel pump is essential because it delivers consistent and reliable fuel flow, which is critical for high-performance engines. When I upgraded my vehicle, I noticed that the stock fuel pump simply couldn’t keep up with the increased demand. The Walbro 255 provides a higher flow rate, ensuring my engine gets the fuel it needs without hesitation, especially under heavy loads or at high RPMs.
Another reason I rely on the Walbro 255 is its durability. I’ve put my vehicle through tough conditions, and this pump has proven to be tough and dependable. It maintains steady pressure, which helps avoid engine hesitation or lean conditions that could damage the engine. For me, having a fuel pump that I can trust means better performance and peace of mind on every drive.
My Buying Guides on Walbro 255 Fuel Pump
When I decided to upgrade my vehicle’s fuel system, I quickly learned that choosing the right fuel pump is crucial. The Walbro 255 Fuel Pump is a popular choice among enthusiasts and professionals alike, and after doing some research and hands-on experience, I want to share what I’ve learned to help you make an informed decision.
Why I Chose the Walbro 255 Fuel Pump
The Walbro 255 stands out because of its reliability and performance. It delivers a consistent fuel flow, which is essential for high-performance engines or modified vehicles. For me, knowing that it’s a trusted brand with a proven track record gave me confidence in my purchase.
Key Features to Look For
When I was shopping, these features helped me narrow down my options:
- Flow Rate: The “255” refers to its flow rate of 255 liters per hour (LPH). This is ideal for many turbocharged or high-performance naturally aspirated engines.
- Compatibility: I made sure the pump was compatible with my vehicle’s make and model, as well as the fuel system setup.
- Voltage: Most Walbro 255 pumps operate at 12 volts, which matches standard automotive electrical systems.
- Installation Type: I looked for an in-tank pump to ensure quieter operation and better cooling, which the Walbro 255 offers.
- Build Quality: The pump’s internal components are designed for durability, handling ethanol blends and high-pressure environments without failure.
Considerations Before Buying
Here are some things I considered before making my purchase:
- Fuel Requirements: My vehicle runs on gasoline, but if you use ethanol blends or race fuels, check the pump’s compatibility.
- Fuel System Upgrades: Since I upgraded my fuel injectors, I needed a pump that could keep up with increased demand.
- Electrical Setup: Ensuring my wiring and fuel pump relay could handle the Walbro 255’s current draw was important for safety and performance.
- Noise Level: I read reviews and found that the Walbro 255 is relatively quiet, which was a plus for me.
Installation Tips From My Experience
Installing the Walbro 255 wasn’t complicated, but I followed these steps to make it smoother:
- Disconnect the battery to avoid electrical shorts.
- Relieve fuel system pressure before removing the old pump.
- Carefully remove the fuel tank if necessary, and avoid damaging the fuel lines.
- Install the new pump securely and ensure all seals and connections are tight.
- Double-check wiring connections and use a quality fuel pump relay.
- Test the pump by turning on the ignition before fully reassembling everything.
Where I Bought My Walbro 255 Fuel Pump
I found the best deals online through reputable automotive parts retailers. Always look for sellers that offer genuine Walbro products and good return policies. Sometimes, local performance shops carry them too, which can be helpful for immediate assistance or installation help.
Final Thoughts
Overall, the Walbro 255 Fuel Pump was a worthwhile upgrade for my vehicle. It gave me the fuel pressure and flow I needed for better engine performance and reliability. If you’re considering a fuel pump upgrade, I recommend the Walbro 255 for its balance of quality, efficiency, and value. Just be sure to match it with your vehicle’s requirements and fuel system setup for the best results.
Author Profile
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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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