What MagnaFlow makes

MagnaFlow is a manufacturer of performance exhaust systems, mufflers, and catalytic converters for the automotive aftermarket, built and shipped from Oceanside, California. Its catalog spans direct-fit and cat-back performance exhaust systems, universal and performance mufflers, exhaust tips and pipes, and universal builder kits used to fabricate an exhaust for almost any application. Performance exhaust lines are organized into named series, including xMOD, SPEQ, Overland, NEO, Street, Competition, and Rock Crawler, covering trucks, muscle cars, sport compacts, and off-road platforms. Through the addition of Camburg Engineering, the brand also carries off-road suspension products.

Catalytic converters are a core product and a regulated one. MagnaFlow says every converter it builds for 1996-and-later vehicles is certified by either the U.S. Environmental Protection Agency or the California Air Resources Board, using a ceramic mesh core loaded in-house with platinum, rhodium, and palladium at levels formulated for each converter's jurisdiction. The spun stainless-steel body is designed to replicate the original-equipment converter so the check-engine light stays off. That work places MagnaFlow squarely in the emissions-critical tier of the aftermarket, where fitment and compliance matter as much as sound and flow.

Manufacturing is CNC- and laser-driven. The company's own capability pages describe a CNC muffler welding system with robotic transport, CNC spinning machines, a CNC body-forming machine, 2D laser cutting, CNC mandrel tube bending, and a CNC tooling mill and machine center. A metrology department runs Blue Light 3D laser scanning and Markforged 3D printing for rapid prototyping, and an in-house emissions lab uses in-ground dynamometers, flow benches, and five-gas testing to validate every new converter design before it goes to production. Buyers evaluating an exhaust or converter supplier are effectively evaluating a vertically integrated shop that formulates its own catalyst and tests to OEM-grade emissions standards.

Ownership and history

Jerry Paolone, who came to the United States from Italy after World War II, founded MagnaFlow in 1981 in Rancho Santa Margarita, California, as an extension of its parent company, Car Sound Exhaust Systems, a specialist in catalytic-converter technology. The MagnaFlow brand grew into one of the best-known names in performance exhaust, and the parent group expanded to carry additional brands, including Rumble and BRExhaust, alongside the Camburg suspension line.

The company remains privately held and family-run. Jerry Paolone continues as founder and CEO, and Dan Paolone serves as president; Jerry Zaiden, who founded Camburg Engineering in 1997, is vice president of strategic partnerships. A defining choice in the company's history was keeping manufacturing in California rather than moving it offshore. Per a 2013 Orange County Register profile, MagnaFlow ran a 280,000-square-foot manufacturing and distribution center in Oceanside using robotics and automation, plus a secondary facility in Rancho Santa Margarita, and adopted lean programs and cross-training to stay cost-competitive while producing domestically. The headquarters is now at 1901 Corporate Centre Dr. in Oceanside, and the company has continued to expand its Oceanside footprint.

Certifications and quality

MagnaFlow describes itself as an ISO-9001 certified company and backs its products with a lifetime warranty. It does not post a dated certificate or scope document publicly, so the certification is reported here as the company's own claim. Its quality case rests heavily on emissions testing: an in-house five-gas emissions lab, in-ground and eddy-current AWD dynamometers, and flow benches are used to confirm that each catalytic-converter design meets EPA and CARB requirements before manufacturing. The company's stated standard is that if a part does not meet or exceed OEM performance and durability, it does not make it. For emissions-regulated parts, that in-house compliance capability is the substantive quality signal, more so than a certificate number.

Known customers

MagnaFlow sells primarily as a branded aftermarket manufacturer through automotive retailers, warehouse distributors, and direct-to-consumer channels rather than through named OEM production programs, so a customer list in the Tier 1 supplier sense does not apply.

The meaningful sourcing evidence for MagnaFlow runs in the other direction, through its own supply base for catalyst materials and components (see below).

Sourcing evidence

MagnaFlow's US import activity is recorded under its parent operating entity, Car Sound Exhaust System, which is the importer of record for the group's catalytic-converter materials and exhaust components. That entity shows 1,021 US sea shipments from February 2015 through September 2026, with the most recent on September 21, 2026, averaging about 1.7 TEU per shipment and roughly 19 TEU per month. The mix is exactly what a domestic converter manufacturer's inbound record should look like: ceramic substrate and converter cores in, finished converters and exhausts built and assembled in California. Customs-derived estimates put cumulative ocean shipping spend near $2.5 million, with cost data covering 88 percent of shipments, an order-of-magnitude figure rather than an audited one.

Seven shown of the group's recorded suppliers. By origin, the record concentrates in China (811 shipments), the United Kingdom (128), South Korea (38), Taiwan (23), and Italy (8). The ceramics-heavy top of the supplier list, Yixing Prince, Beihai Xingyuan, and Outa Environment Protection, reflects the ceramic honeycomb substrate that carries the precious-metal washcoat in a catalytic converter, consistent with a manufacturer that formulates and coats its own catalyst domestically. For buyers weighing tariff exposure and nearshoring, the pattern shows heavy dependence on Chinese ceramic substrate paired with US final manufacturing.

Coverage caveats: these are US ocean-freight records only. Air, truck, and rail movements do not appear; some records name freight intermediaries rather than manufacturers; and product categories come from declared manifest codes, which are noisy. The separate ImportYeti entity named directly for "Magnaflow Exhaust Products" carries only 34 shipments; the 1,021-shipment record belongs to the Car Sound Exhaust operating entity. Absence of a record is not evidence of absence.

Frequently asked questions

What does MagnaFlow manufacture?

MagnaFlow manufactures performance exhaust systems, mufflers, and catalytic converters for the automotive aftermarket, plus exhaust tips, pipes, and universal builder kits. Catalytic converters are a core product, built with an in-house-formulated platinum, rhodium, and palladium catalyst and certified to EPA or CARB standards for 1996-and-later vehicles. Through Camburg Engineering the brand also offers off-road suspension products.

Who owns MagnaFlow?

MagnaFlow is privately held and family-run. It was founded in 1981 by Jerry Paolone as an extension of its parent, Car Sound Exhaust Systems, which also owns the Rumble and BRExhaust brands. Jerry Paolone is founder and CEO and Dan Paolone is president.

Where is MagnaFlow headquartered?

MagnaFlow is headquartered at 1901 Corporate Centre Dr., Oceanside, California 92056, with manufacturing in Oceanside. The company was originally based in Rancho Santa Margarita, California, where it was founded in 1981, and has kept its manufacturing in California rather than offshoring it.

How many employees does MagnaFlow have?

MagnaFlow does not publish an employee count. Industry directories estimate a range from roughly 270 to the high hundreds, and its LinkedIn company profile lists a 501-to-1,000 band. Treat any single figure as an estimate rather than a reported number.

What certifications does MagnaFlow hold?

MagnaFlow describes itself as an ISO-9001 certified company and backs its products with a lifetime warranty. It does not post a dated certificate publicly, so the certification is reported as the company's own claim. Its catalytic converters are certified to U.S. EPA or California CARB emissions standards, validated in an in-house five-gas emissions lab.

Who are MagnaFlow's suppliers?

MagnaFlow's parent import entity, Car Sound Exhaust System, imports catalytic-converter materials and exhaust components, led by ceramic substrate from Chinese suppliers such as Yixing Prince Ceramics, Beihai Xingyuan, and Outa Environment Protection, alongside automotive-component suppliers in China, the United Kingdom, South Korea, and Taiwan. The company then formulates its catalyst and builds finished converters and exhausts in California.

Last verified September 28, 2026. Is this your company? Request a correction.