
So American they say it right in their name! American Racing Headers manufactures high-quality, high-performance exhaust systems for racing vehicles across the board, from classic Oldsmobiles to brand new Ford Mustangs and GMC trucks. Whatever you drive, American Racing Headers has the exhaust system to match.
Another reason we at Lethal Performance love American Racing Headers is their philosophy of making horsepower through headers, which is showcased by the racers who use their products and win championships and set records. Made from aircraft quality T304 stainless steel, these exhaust systems are made to bring the power and last for many races to come. Get yours from Lethal Performance today!
Every serious build starts with one question: how well does it breathe? Stock manifolds are designed to meet emissions and noise regulations, not to make power. That’s where American Racing Headers step in. Born from a passion for racing and perfected with aerospace-grade stainless steel, ARH has become the go-to for muscle car drivers and tuners who want more out of their engines.
At Lethal Performance, we’ve seen time and again how swapping to a set of ARH long tube headers transforms Mustangs, Camaros, and Challengers. If you’re chasing dyno numbers, track times, or just that unmistakable exhaust note, ARH delivers with stainless craftsmanship that’s as tough as the cars they’re built for.
Hear a 2015 Mustang GT come alive with ARH 1-7/8” long tubes paired with Pure Thunder mufflers. If you’re debating headers, this is the sound and performance you’ve been waiting to experience.
ARH is synonymous with stainless headers that outperform and outlast most options on the market. Their catalog is aimed squarely at enthusiasts who care about quality, fitment, and flow.
The flagship product. Long tubes increase scavenging, reduce back pressure, and deliver some of the biggest horsepower gains you can get from bolt-ons.
All ARH headers are built from T304 stainless steel, TIG-welded, and mandrel-bent. They’re corrosion-resistant and come with a lifetime warranty.
Many ARH kits include X-pipes or H-pipes and high-flow cats, giving you a full solution from the heads back.
Each kit is engineered around the quirks of the platform, ensuring clearance, proper O2 placement, and flow characteristics tuned to the engine.

Headers are one of the most transformative mods you can make. A set of ARH headers doesn’t just give you more horsepower; it redefines how your car sounds and responds.
Unlike some mods that only shine up top, headers add torque and horsepower across the curve.
Factory manifolds muffle everything. ARH lets your engine breathe—and growl.
Headers live in the hottest part of the car. ARH builds them to survive it.
Headers are a cornerstone mod; they set the stage for bigger power. Once you’ve bolted on a set of ARHs, the rest of your build opens up.
Pairing ARH long tube headers with a cat-back maximizes flow and sharpens tone. Choose H-pipe or X-pipe designs to shape sound and performance.
Headers change back pressure and airflow. A custom tune ensures your ECU takes full advantage of the gains.
Running a supercharger or turbos? ARH stainless headers handle the heat and flow demands of boosted builds with ease.
Cold air intakes, bigger throttle bodies, and upgraded fuel delivery all stack with ARH systems to create a balanced, high-horsepower setup.

ARH thrives in the world of muscle cars and high-performance platforms. Their strongest following is with Ford, GM, and Mopar builds, but they’ve expanded into trucks and specialty platforms as well.
Thinking about upgrading to American Racing Headers? Here are some of the most common questions enthusiasts ask before making the jump, along with answers that show why ARH and Lethal Performance are a winning combo.
Some ARH systems are offered with high-flow catalytic converters, while others are off-road only. Check the specific part listing at Lethal Performance for CARB EO numbers or off-road designations before ordering.
ARH headers give your engine a sharper, more race-inspired tone. Expect a deeper idle, crisper note under throttle, and a screaming top end that stock manifolds simply can’t match.
Absolutely. ARH headers are a favorite for supercharged and turbocharged builds thanks to their strength and flow capacity. Their stainless construction is built to withstand the heat and pressure of high-boost applications.
Factory manifolds choke engines. American Racing Headers set them free. Whether you’re after dyno-proven horsepower, a sharper exhaust note, or stainless hardware that’ll last as long as your build, ARH delivers. Lethal Performance has the headers and full systems you need to make it happen, backed by expert support and fast shipping. Unleash true performance with American Racing Headers at Lethal Performance.