Is Flowmaster Made in USA?
Last checked Oct 8, 2026 · 6 verified products · see the evidence
Yes — Made in USA
Flowmaster manufactures its products in the United States — specifically in Santa Rosa, CA. Sources: the brand's own website. Each is quoted and dated below.
Top verified pick
Flowmaster 40 Series Original Chambered Muffler 2.50-Inch Center In/Offset Out100% American ScoreAmerican Score
Average American Score across 6 verified products — scores ≥70% are shown on this site.
Manufacturing Details
- Made in
- Santa Rosa, CA
- Headquarters
- Santa Rosa, CA
- Location detail
- Specific city confirmed
- History
- Long-established (50+ years)
- Founded
- 1983
How we verified Flowmaster
Most recent check: Oct 8, 2026
From the brand's website
“Flowmaster Super HP-2 Muffler 304SS are manufactured in the USA”
flowmastermufflers.com · checked Oct 1, 2026
Amazon listings
We read the live Amazon listing for 6 of the 6 Flowmaster products on this page (most recently Oct 8, 2026). None of them states where the product is made, so these products rely on the brand-level evidence above.
These checks are run by our software on a schedule: brand websites are re-read about every three weeks, Amazon listings weekly, and news is scanned monthly. Every flag is checked against its original source before anything on this page changes. How the American Score works.
About Flowmaster
Flowmaster invented the chambered muffler design in Santa Rosa, California in 1983 and has been manufacturing the American muscle exhaust sound in California ever since, setting the standard for performance mufflers for over 40 years.
Heritage & History
Flowmaster was founded in 1983 in Santa Rosa, California by Ray Flugger, who developed a unique chambered muffler design that produced a distinctly aggressive exhaust note while actually improving exhaust flow. The company's name came from the 'flow' improvement the design offered, and within years Flowmaster had become synonymous with the sound of American performance vehicles.
The brand's reputation was built in drag racing and street performance circles, where Flowmaster mufflers appeared on muscle cars, hot rods, and trucks across the country. The company was acquired by Holley Performance Brands in 2018, which has maintained the California manufacturing operation and the brand's commitment to American-made exhaust products.
Made in Santa Rosa, California
Flowmaster mufflers and exhaust systems are manufactured in Santa Rosa, California, where engineers use flow benches, dynamometers, and audio testing equipment to design and validate every product. The company's baffled and chambered dynamic muffler structure reduces restriction dramatically compared to stock mufflers — the SuperFlow series achieves as little as 5% flow restriction.
Flowmaster's product line covers everything from replacement mufflers to complete cat-back exhaust systems, headers, and exhaust tips for a wide range of vehicles. The Outlaw series targets maximum performance, while the 40 and 50 Series are engineered for that classic deep Flowmaster tone that became the soundtrack of American performance culture. Every system carries a warranty backed by over 40 years of California engineering.
American-Made Flowmaster Products
USA Verified
USA Verified
Frequently Asked Questions
Is Flowmaster made in the USA?
Yes. Flowmaster is made in the United States, manufactured in Santa Rosa, CA. Founded 1983 in Santa Rosa, California. Original American muscle exhaust brand, setting the standard for high-performance exhaust systems for over 40 years. All mufflers and exhaust systems manufactured in the USA. Now part of Holley Performance Brands, which maintains USA manufacturing at the California facility.
Where is Flowmaster made?
Flowmaster is made in Santa Rosa, CA. The company is headquartered in Santa Rosa, CA.
Which Flowmaster products are made in the USA?
We carry 6 verified American-made Flowmaster products across Automotive. Every listing links directly to a trusted online store with verified manufacturing evidence.