Manufacturing of exhaust system parts, new (including mufflers, resonators, pipes, and catalytic converters)

Facility	City	State	Employees	Status
6s Machining Enterprises LLC	San Marcos	CA	—	● ACTIVE
Active Radiator LLC	Philadelphia	PA	—	● ACTIVE
Adams Thermal Systems INC	Canton	SD	100–499	● ACTIVE
ASAdrian Steel Company	Adrian	MI	100–499	● ACTIVE
Advanced Structural Technologies, INC.	Oxnard	CA	100–499	● ACTIVE
Alliance Industries, L.l.c.	Springfield	MO	20–99	● ACTIVE
Api Heat Transfer Thermasys Corporation	Franklin	WI	—	● ACTIVE
Bergstrom INC	Rockford	IL	100–499	● ACTIVE
BPBorla Performance Industries INC	Johnson City	TN	100–499	● ACTIVE
BPBorla Performance Industries, INC.	Oxnard	CA	20–99	● ACTIVE
Buckstop Truckware Incorporated	Prineville	OR	—	● ACTIVE
B & W Custom Truck Beds	Humboldt	KS	—	● ACTIVE
Centek Industries, INC.	Thomasville	GA	20–99	● ACTIVE
Century Tool, INC.	Rogers	MN	—	● ACTIVE
Curt Manufacturing, LLC	Eau Claire	WI	—	● ACTIVE
Diamondback Automotive Accessories, INC.	Philipsburg	PA	100–499	● ACTIVE
Donaldson CO INC	Frankfort	IN	100–499	● ACTIVE
Donaldson Company INC	Auburn	AL	100–499	● ACTIVE
Donaldson Company INC	Stevens Point	WI	100–499	● ACTIVE
Ferrotec (usa) Corporation	Livermore	CA	100–499	● ACTIVE
Gentex Corporation	Zeeland	MI	—	● ACTIVE
Hamlin Newco, LLC	Akron	OH	20–99	● ACTIVE
Innovative Industries INC	Antigo	WI	20–99	● ACTIVE
Medix Specialty Vehicles, LLC	Elkhart	IN	100–499	● ACTIVE
Owens Products INC	Sturgis	MI	20–99	● ACTIVE
Patriot Armored Systems LLC	Lee	MA	—	● ACTIVE
Peerless Chain Company	Winona	MN	100–499	● ACTIVE
Rosenbauer Minnesota, LLC	Wyoming	MN	100–499	● ACTIVE
Saf-holland, INC.	Muskegon	MI	100–499	● ACTIVE
SESaris Equipment LLC	Fitchburg	WI	20–99	● ACTIVE
T/cci Manufacturing, L.l.c.	Decatur	IL	100–499	● ACTIVE
Tsm Champ, LLC	Sarasota	FL	—	● ACTIVE
Adiem Engineering Cnc LLC	Santee	CA	—	● ACTIVE
Advanced Prototyping INC	Rochester Hills	MI	—	● ACTIVE
Advanced Theoretical Concepts, INC.	Camarillo	CA	—	● ACTIVE
Aero-mechanical Engineering, INC	Huntington Beach	CA	—	● ACTIVE
Altex Technologies Corporation	San Jose	CA	—	● ACTIVE
Astro Machine CO INC	Hawthorne	CA	—	● ACTIVE
ARAutomotive Racing Products, INC	Ventura	CA	20–99	● ACTIVE
Auto-valve, INC	Dayton	OH	20–99	● ACTIVE
Bend-tek, INC.	Santa Ana	CA	—	● ACTIVE
Borgwarner INC.	Auburn Hills	MI	—	● ACTIVE
Cold Air Inductions INC.	Riley	MI	—	● ACTIVE
Collins Manufacturing CORP	Medford	OR	—	● ACTIVE
CPColonial Plastics, INC.	Shelby Township	MI	20–99	● ACTIVE
C&r Racing, Incorporated	Indianapolis	IN	—	● ACTIVE
DZDee Zee, INC	Des Moines	IA	—	● ACTIVE
Dill Air Controls Products LLC	Oxford	NC	—	● ACTIVE
Dinex Emission, INC	Dublin	GA	—	● ACTIVE
DCDonaldson Company, INC.	Dixon	IL	100–499	● ACTIVE
Fdp Virginia, INC.	Tappahannock	VA	—	● ACTIVE
FFFlex-n-gate Forming Technologies, LLC	Troy	MI	100–499	● ACTIVE
Gator-made, INC.	Somerset	KY	—	● ACTIVE
Gecko Materials, Pbc	Campbell	CA	—	● ACTIVE
Griffin Thermal Acquisition Company	Piedmont	SC	—	● ACTIVE
Hutchinson Industries, INC	Trenton	NJ	—	● ACTIVE
Indy Performance Composites, INC.	Brownsburg	IN	—	● ACTIVE
Josephson Manufacturing Company	Fort Dodge	IA	—	● ACTIVE
Kit Masters INC	Perham	MN	—	● ACTIVE
Mahle Industrial Thermal Systems America LP	Belmont	MI	—	● ACTIVE
Mckenzie Machining INC	San Jose	CA	—	● ACTIVE
Mekra Lang North America, LLC	Ridgeway	SC	100–499	● ACTIVE
Mike Kenney Tool, INC	Placentia	CA	—	● ACTIVE
Miller Diversified Machining INC	Minneapolis	MN	—	● ACTIVE
Modine Manufacturing CO	Racine	WI	100–499	● ACTIVE
Motorcar Parts of America, INC	Torrance	CA	—	● ACTIVE
Ndk Paragon, LLC	Oceanside	CA	—	● ACTIVE
Nexgen Group INC	Nappanee	IN	—	● ACTIVE
Oetiker Ny, INC	Lancaster	NY	100–499	● ACTIVE
Omanson Precision Engineering, INC	Chino	CA	—	● ACTIVE
Orscheln Products LLC	Moberly	MO	100–499	● ACTIVE
O & Y Precision INC	Morgan Hill	CA	—	● ACTIVE
Piston Automotive LLC	Redford	MI	100–499	● ACTIVE
Precision Manufacturing	Roseville	CA	—	● ACTIVE
Sedia, INC.	Milwaukee	WI	—	● ACTIVE
Shaw Development, LLC	Bonita Springs	FL	—	● ACTIVE
Tapemation Machining INC.	San Jose	CA	—	● ACTIVE
Therma-tech Engineering INC	Redford	MI	—	● ACTIVE
TFTransfer Flow, INC.	Chico	CA	20–99	● ACTIVE
Vision Aerospace LLC	Northridge	CA	—	● ACTIVE
V & S Engineering Company, LTD.	Huntington Beach	CA	—	● ACTIVE
Westcoast Precision, INC	San Jose	CA	—	● ACTIVE
893 Mfg, LLC	Morristown	NJ	—	● ACTIVE
Adac Plastics, INC.	Grand Rapids	MI	—	● ACTIVE
Aeromutable Corporation	Ramona	CA	—	● ACTIVE
American Adventure Labs, LLC	Saint George	UT	—	● ACTIVE
American Metal Technologies, LLC	Sturtevant	WI	—	● ACTIVE
American Van Equipment, LLC	Lakewood	NJ	—	● ACTIVE
Arc-rite Welding and Truck Accessories LLC	Del Rio	TX	—	● ACTIVE
Belco Vehicle Solutions LLC	Poynette	WI	—	● ACTIVE
Bollox LLC	Grand Junction	CO	—	● ACTIVE
Boltrock Ventures LLC	Scottsdale	AZ	—	● ACTIVE
Brindlee Mountain Fire Apparatus, LLC	Union Grove	AL	—	● ACTIVE
Brixrae Limited	Cockeysville	MD	—	● ACTIVE
Cerebrum Sensor Technologies, INC	Van Nuys	CA	—	● ACTIVE
Clean Fuel Screen CO LLC	Marietta	GA	—	● ACTIVE
Cleveland Tank & Supply INC	Bedford	OH	—	● ACTIVE
CFComposite Fundamentals, INC	Seattle	WA	—	● ACTIVE
Compton's Quality Group INC	Sterling Heights	MI	—	● ACTIVE
CECurrent Electric Vehicles LLC	Northridge	CA	—	● ACTIVE

FactoryRegistry lists 1,833 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced exhaust system parts, new (including mufflers, resonators, pipes, and catalytic converters), in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.

The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, and withheld the establishment count for it.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2042950000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.