Restomods, engine swaps, and custom builds often involve removing factory emissions systems. One of the most commonly deleted—and least planned for—is the factory fuel vapor (EVAP) system. When it’s removed without a replacement, builders often experience fuel smell, pressure buildup, or unsafe venting, usually after the build is already finished. What Does the Factory EVAP System Do? The factory EVAP system manages fuel vapors created inside the tank as fuel heats up and expands. Its purpose is to: Capture fuel vapors Store them in a charcoal canister Prevent fuel odor around the vehicle Allow the fuel tank to breathe safely (In most custom builds, this system is removed entirely.) What Happens When You Delete the EVAP System? Fuel vapors don’t disappear when the EVAP system is removed—they lose their controlled path. Fuel Vapors Vent to Atmosphere Open vents and breather filters allow raw fuel vapors to escape, leading to: Strong fuel smell in garages Odor inside the vehicle Fuel Tank Pressure Builds Without proper vapor management, pressure builds inside the tank, which can cause: Fuel seepage at fittings Stress on fuel system components Inconsistent behavior in hot conditions Problems Often Appear Later These issues typically show up after: Hot weather Long drives Parking with a full tank Sitting overnight in enclosed spaces Why Fuel Vapor Management Matters in Custom Builds Whether you’re running an aftermarket fuel tank, carburetor, or performance fuel system, fuel vapors still expand and move. Ignoring them doesn’t eliminate the issue—it just shifts where the problem appears. Proper vapor management improves: Driveability Garage usability Long-term reliability Overall build quality How to Manage Fuel Vapors Without a Factory EVAP System You don’t need to reinstall a complete OEM EVAP system to manage fuel vapors correctly. Custom builds require a simpler, flexible solution that: Traps fuel vapors before venting Reduces fuel smell Allows the tank to breathe Mounts easily in custom locations This is where the Vapor Trapper™  is used—providing charcoal vapor capture in a compact, universal format designed for restomods and custom builds. Plan Fuel Vapor Control Early Fuel vapor management isn’t flashy, but it directly affects how enjoyable a custom car is to live with. Planning for it early prevents rework, protects your fuel system, and keeps the build clean and functional long term. The best builds aren’t just built to run—they’re built to live with.

Every custom build is different — engine swaps, fuel systems, and layouts all vary. But one thing they all have in common? Fuel vapors still need somewhere to go. Choosing the right Vapor Trapper™ isn’t about adding another part to the build. It’s about solving a problem most builders don’t realize they still have until the car smells like gas. Here’s how to choose the right one for your vehicle. Why Vapor Control Gets Missed During swaps and restorations, factory EVAP systems are usually removed. They don’t fit the new setup, and they’re rarely designed for modified applications. So the tank gets vented. That works — until it doesn’t. Fuel vapors build pressure, escape through vent lines, and end up in the garage, cabin, or both. Modern fuels only make the problem worse. Understand Your Fuel System Layout Before choosing a Vapor Trapper™, consider: Vent line size Tank location Return or returnless system These factors influence how much vapor your system produces — and how much capacity you’ll need to capture it effectively. Choosing the Right Size Vapor Trapper™ Smaller engines and light-use vehicles may only require a compact unit.High-performance builds, larger tanks, or vehicles that see frequent heat cycles benefit from higher vapor capacity. The goal isn’t “biggest possible” — it’s right for your application. Built for Builders Vapor Trapper™ was designed specifically for custom vehicles — not adapted from an OEM application. Universal fit. Clean install. No guessing. It’s a simple solution to a problem builders have accepted for too long.

🏆 Runner-Up: Best New Street Rod & Custom Car Product 🏆 Runner-Up: Best New Powersports & Utility Vehicle Product 🏆 Two Media Choice Awards What an incredible week it’s been at SEMA 2025 ! Every year, this show brings together some of the most passionate, creative, and innovative people in the automotive industry — and this year was one for the books. We’re beyond proud (and honestly still pinching ourselves) to share that Vapor Trapper™  walked away with four  incredible honors at this year’s show. To be recognized in multiple categories among so many groundbreaking products and brands is truly humbling. These awards are a reflection of the dedication, innovation, and passion our entire team pours into what we do — and of course, the amazing support we get from our community, customers, and partners who continue to believe in the Vapor Trapper mission. We’re so grateful for how far we’ve come, and we’re just getting started. The future of Vapor Trapper™ is looking brighter than ever, and we can’t wait to show you what’s next. Here’s to more innovation, more collaborations, and more milestones ahead. Thank you, SEMA 2025 — what a ride!

The Vapor Trapper a high-quality billet aluminum charcoal canister, designed to successfully eliminate fuel odors. Engineered for both classic and modern vehicles, our product supports cleaner emissions and an odor-free driving experience. Shop now. Made in the USA. BUY NOW Become a Dealer Apply Today Vapor Trapper™ was awarded as the top new product in 2 categories at SEMA 2025 in Las Vegas! Powersports and Utility Vehicle Product Street Rod and Custom Car Product Vapor Trapper™ was also honored with 2"Media Choice" awards, recognized as top picks at SEMA 2025. 1/8 BUY NOW About Us The Vapor Trapper™ is the ONLY rechargeable billet aluminum charcoal vapor canister on the market that eliminates the raw fuel smell from your fuel tank vent lines! Keep your garage and storage area smelling clean without gas fumes! | Hand Built By Americans | Easy Installation | Lifetime Warranty | Learn More Vapor Trapper™ Why does my garage smell like gas? Does your vehicle constantly smell like raw gas? Do you hate keeping it in the garage because it makes the whole garage and house smell like gas? The Vapor Trapper™ is a high-quality billet aluminum charcoal vapor canister specifically designed to reduce/eliminate fuel odors from vehicles in which their fuel tanks vent to the atmosphere. It is the only aftermarket, universally designed, charcoal vapor canister on the market. The Vapor Trapper™ was made for all cars, trucks, hotrods, boats, and everything in between! The Vapor Trapper™ is easy to install and comes with a lifetime warranty. Manufactured using 6061 billet aluminum, to last a lifetime. They’re rechargeable, meaning the charcoal contents can be replaced when they eventually become saturated (5-7yrs). This will be the last charcoal canister you will ever need for your vehicle! With the new trend of adding modern fuel injection to your vehicle, manufacturers of these EFI systems, fuel cells and custom builders have not been able to answer this huge problem of the raw gas smell. Shop48 set out to provide a solution to this growing problem by developing the Vapor Trapper ™. Now you can eliminate the raw gas smell with this great new product! Nothing else on the market is as high-quality and effective as the Vapor Trapper ™. Installation is simple and straightforward since it is installed in line with your fuel tank vent hose using practically any inlet/outlet configuration. The Vapor Trapper ™ is proudly manufactured and assembled in the USA, right here in our home state of Arizona! Patented Sign up for Special Offers Subscribe to get email updates and access to exclusive subscriber content. First Name Last Name Email Sign Me Up What Our Customers Are Saying Dear Tom, Thank you for providing a product as life-changing as Vapor Trapper. At the risk of sounding overdramatic, my story will illustrate the insidious nature of gasoline vapors in our daily lives and why Vapor Trapper is the best solution. Three months ago I came to possess a classic street rod after many years away from the hobby. I was very excited to be the owner of this 1941 beauty and looked forward to driving around with my local car club. It brought me back to a happier time of life. The car is kept in my attached one-car garage which is closed on three sides and has only the overhead garage door on the fourth side. When I entered the garage from the house I could smell the car and I thought, “Ah, that smells like horsepower!” as it reminded me of past street rods and drag racers that I had owned in my younger years. The smell was recognizably raw gasoline and I knew in the back of my mind that it was the result of the vent from the gas tank to the air, but the smell didn’t bother me as it never bothered me in the past. After a few days I could smell the fumes in the house and I came to realize that the HVAC system’s air handler located in the garage was picking up the fumes and blowing them into my living quarters. Again I was not bothered personally even though the vapor smell was quite evident. At about this time my two cats who are never allowed in the garage and are strictly indoor cats became ill with diarrhea and vomiting. A quick troubleshoot told me that the only change in my life was the car being in the garage and the smell entering the house. After veterinary treatment of my cats, to the tune of $1000, the seriousness of this issue became evident and it called for immediate action on my part. I ordered and installed a Vapor Trapper which immediately alleviated almost all the odors related to the car. I knew that this street rod with a carburetor on the motor would never lose all the sources of odors so I installed an exhaust fan in the garage to create fresh air flow and now the garage is odor free. The air coming into my house is free of any and all odors and the cats are fully recovered and happy again. Mine is only one of the ways that gasoline vapors from a classic or custom vehicle can affect our lives and health without our being totally aware that a problem even exists. For anyone who has such an issue with a custom or classic car or for someone who may be reluctant to own such a car because of the associated smells, Vapor Trapper is the solution. It certainly worked for me. Very truly yours, Vincent Mollicone Ocean City, MD Timberly Williams Definitely awesome products, My trapper works like a champ! Zero smells in my garage. 👌🏼🏆 - Greengo J. If you’re looking for the latest innovation and restoration, this shop has it all. I got to spend time with these guys at the Sema show with the Vapor Trapper amazing product.👍🦅us - Winne

Looking to purchase a Vapor Trapper™ outside of the United States? Vapor Trapper™ is available through authorized distributors in select countries outside the U.S. To ensure proper support, availability, and shipping, international orders are handled directly by our regional partners. Click your country below to visit an authorized Vapor Trapper™ distributor. Coming Soon...

Struggling with gasoline odor in your garage? VaporTrapper provides innovative solutions like charcoal canisters to eliminate fuel vapors and keep your space odor-free. Learn more about us! The Industry Standard for Eliminating the Gas Smell from your Car, Truck, or Boat. Established 2020 Gilbert, AZ BUY NOW Our Mission Our mission is to introduce innovation to car enthusiasts by offering a unique and compelling charcoal vapor canister. We pride ourselves on providing a high-quality billet aluminum canister that is proudly made in the USA for all who struggle with raw fuel smells in their garages or storage areas. Our purpose is to stand out as the most effective and superior option available on the market. Our Story A few years back, Owner Tom Mischke was presented with a challenge when a customer brought him a 1962 Jaguar that was emitting a strong gasoline odor. Looking at the fuel tank, Tom sought to find a way to capture the vapors that were being vented directly into the atmosphere. Knowing that activated charcoal is used to capture odors, Tom looked everywhere for an existing charcoal canister that could be adapted to automotive use. When he couldn’t find one, he decided to make it himself. Our most recent innovation, Vapor Trapper, is poised to change the classic car hobby in a major way. Before EPA regulations mandated closed-loop fuel systems, gasoline vapors were an annoyance that had to be tolerated by every auto owner. Today, people just expect their vehicles TO NOT SMELL LIKE GAS and if they do – it’s a sign that something is terribly wrong! But if you own a vintage car, truck, or even a modern-built hotrod with a new fuel-injected engine, you probably go out into your garage, and it smells like gas. The result is Vapor Trapper, a universal billet aluminum charcoal canister that traps gasoline vapors before they can escape from the fuel system. Easily installed anywhere above the fuel tank level, the Vapor Trapper absorbs gas odors while allowing the fuel tank to vent normally. The charcoal lasts for a long time. When it becomes saturated, simply unscrew the top, replace the charcoal, and the Vapor Trapper is ready to go. Vapor Trapper is now installed on every car that passes through Tom’s shop. Awards And Recognition The Vapor Trapper™ was named by Hagerty as one of their top 18 picks for SEMA 2023! Sign up for Special Offers Subscribe to get email updates and access to exclusive subscriber content. First Name Last Name Email Sign Me Up Thanks for submitting!