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Discover high-performance packages built for serious enthusiasts. Each kit is curated with components that are engineered to work together for maximum power, handling, and reliability. Featuring trusted brands like Flowmaster, Baer Brakes, ADS Suspension, Simpson, DiabloSport, and more—these combos take the guesswork out of upgrading. Proven results, unmatched performance, all in one place.

Holley is the source for your Air & Fuel delivery upgrades! From Carburetors to the latest in EFI Fuel Injection Systems and Fuel Pumps. We have your products from air cleaners to fuel tanks and everything in between. Sniper EFI has been leading the conversion to EFI for decades!

Going fast is always our goal, but having the support and power to stop your hod-rod is a must! At Holley.com we have you covered for Rotors, Pads, Master Cylinders, Big Brake Kits and all supporting accessories to improve how your car responds.

Cataclean is a patented & EPA Approved fuel and exhaust system cleaner that reduces carbon build-up and also cleans your vehicle's oxygen sensors, fuel injectors and cylinder heads. Excess carbon build-up robs your vehicle of horsepower, wastes fuel and increases emissions output. Cataclean helps to reduce carbon build-up and optimizes your vehicles complete powertrain. Cataclean eliminates fuel injector build-up cleaning the fuel system for maximum power production.

Keeping your vehicle cool is the key to maximum performance. We have everything you need to help dissipate that extra heat. High Performance Radiators, Water pumps, oil coolers, and more.

From Ford Flathead to GM Gen V LT, and including everything in between like small-block and big-block Ford and Chevy, Gen III/IV LS, Coyote, Hemi, and more, we have the parts to coax more power out of the engine under the hood of your hot rod.

Engine Swap Components for LS, Gen V LT, Coyote, Godzilla, and Gen III Hemi installations. Components include exhaust headers, engine & transmission mounts, fuel tanks, radiators, oil pans, and accessory drives.

Holley is home to some of the top-performance exhaust brands in the world. Brands like Flowmaster, Hooker BlackHeart, Hooker Classic, Flowtech, APR, Dinan, and Flowmonster combine to cover thousands of applications and a variety of budgets. Whether you are putting a full stainless steel exhaust on your late-model muscle car or if your rat rod needs a set of Lakester headers, Holley’s exhaust brands have you covered.

A wide selection of fasteners & hardware for most high-performance engines. Choose from basic replacement products, chrome & stainless dress-up fasteners, and premium quality hardware.

Holley has the widest selection of high-quality gaskets you can find. From the intake manifold to the oil pan, and everything between, we have the gaskets to help you get your projects back together and back on the road.

Gauges, Timing Lights, Digital displays, Wiring harnesses, Adapters, Fittings, and more. When it comes to monitoring and tracking your engine and/or vehicle's performance, look to the Holley Performance family of brands and products for a variety of gauges and gauge accessories to choose from. Brands you know and trust like Mr. Gasket, Holley EFI, ACCEL, MSD, Earls, Sniper, and more.

Ignition, Coils, Spark Plug Wires, Distributors, and more from MSD, Holley, Accel, and Mallory! Incredible new exciting products from MSD like the Ultra 6AL, tune-up kits and so much more.

Restoring a classic hot rod can be a big undertaking! Don't worry, we have you covered here at Holley with all of your Carpet, Console, Dash, Door, Floor Mat, Gauge and Steering Wheel needs. If you're looking to just spice up the interior a bit of your more modern muscle car, we also have some great options for you in the Steering Wheel category. Check out exciting brands like Brothers, Hurts, Holley, Hays, Detroit Speed, Scott Drake and more.

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If you are building an LS engine, you have to check out the products in this
category.
Holley has responded to this marketplace by developing the most complete line-up of LS performance upgrades and LS swap products.
Holley has developed EFI systems, intake manifolds, fuel pumps, oil pans, accessory drive pulleys and dress-up components.

NOS has powered more racers than any other brand of nitrous. When you're looking to go fast, rely on NOS to deliver the most power per dollar available. From stock engines to race vehicles, jet skis to trucks, NOS has a kit for you.

Tackle any trail with Holley’s Off-Road product line—built for adventure and engineered to perform. From winches and recovery gear to LED lighting, air and fuel systems, Holley has the off-road parts you need. Featuring trusted brands like Simpson Racing, Flowmaster Exhaust, Sniper EFI, and ADS Suspension. Whether you're rock crawling or overlanding, Holley Off-Road delivers rugged, reliable performance where it matters most.

Take a look at our ever expanding line of the highest quality hose, hose ends, adapters, hose coverings, kits, accessories, hardware, and tools. Whether you're looking for high quality fuel hose, AN Brake lines, or PTFE braided hose for your build, we've got you covered!

Safety first! When it comes to racing your automobile, nothing is more important than keeping yourself safe and following all regulations. At Holley we have you covered from a wide variety of Helmets, Racing Suits, Racing Seats, Gloves, Harnesses and so much more. Regardless if you're racing professionally or just on the weekends for fun we have the equipment for you. We also have the future of the racing industry covered with all sorts of youth safety equipment!

With 12 brands covering early and late model muscle cars, trucks, and imports, the Holley family of brands can get your project lifted, lowered, and or handling better.

We have the tools needed to support your projects - plumbing, carburetor, electrical, engine building, and much more.

From Bellhousings, Flexplates and Flywheels to Clutches and Torque Converters. Plus tons of the small pieces needed to button up or couple your transmission and drivetrain.

Power tuning and programming in the palm of your hand! Available for GM, FCA, Ford, and more! Multiple power levels and monitoring parameters for your gas or diesel powered ride! The powerful and wide-ranging calibrations found in our handheld and in-cabin tuners are capable of increasing performance, improving drivability, increasing towing power, and even improving efficiency.

Horsepower is always top of mind, but making your ride look amazing is just as important! At Holley we have a wide variety of Wheels and Wheel accessories for your build. We have exciting brands like Shelby, HK, Halibrand, Rev and so much more! We also have you covered with lug nuts, wheel spacers, tpms sensors and any needed accessory to complete your set up!

Whether you are a die-hard gearhead or the casual automotive enthusiast, shop here and Buy Your Favorite T-Shirts, Hats, Hoodies, Clocks, Decals and More!

We provide a wide range of components needed for converting a traditional gasoline or diesel powered vehicles into an electric vehicle.

From race-proven transmission fluid to lubricants and sealants for doing the job right- we have the oils and additives you need. Check out items like NOS Octane Booster, Holley Carburetor Cleaner and industry leading Cataclean!

At the heart of our work is a passion for helping automotive enthusiasts bring their dream vehicles to life. Whether you're in the process of restoring a vintage classic pickup truck, giving a timeless muscle car a new lease on life, or customizing any other type of vehicle, we are here to provide the expertise, parts, and support you need. No matter the project, we are dedicated to ensuring your vision becomes a reality with top-notch service and a commitment to excellence every step of the way