- Auto-Jet Muffler Corp.
 - Provides mufflers and mandrel bent tubes in aluminized and 304 stainless steel tubing. - B & B Fabrication, Inc.
- Develops and manufactures stainless steel and carbon fibre performance exhaust systems.
- Bassani Exhaust
- US-made high performance street-legal and racing exhaust systems.
- Berklee Ltd.
- Manufacturer of automotive exhaust components for the aftermarket, both locally and for export.
- Borla Performance Industries
- Manufacturer of automotive and racing performance exhaust products.
- Bosal International
- Produces complete exhaust systems for the aftermarket and original equipment applications.
- Burns Stainless
- Exhaust system components such as stainless headers, merge collectors, tubing, bends, and hardware for professional racers and fabricators.
- DCL International
- DCL designs and manufactures catalytic converters, catalytic mufflers, diesel particulate filters, and stock mufflers for the air pollution control of off-highway vehicles, stationary engines, industrial processes, and specialised on-highway vehicles.
- Diesel Performance Systems
- Manufacturer of high performance Ford, Chevy, and Dodge diesel truck exhaust systems from aluminized tubing.
 Double 'S' Exhausts Ltd
- Manufactures stainless steel exhausts for performance and classic cars.- Flowmaster Mufflers
- Available for domestic and imported cars and trucks.
- Gibson Performance Inc.
- Offers various exhaust systems and headers for many models.
- Goerlich's Exhaust Systems, Inc.
- Developers of high performance automotive exhaust systems.
- Hedman Hedders
- Manufactures headers, exhaust products, mufflers, and manifolds (headers).
- Hooker Headers
- Maker of header and exhaust systems for a variety of applications.
- MagnaFlow
- Performance exhaust systems and performance mufflers.
- MBRP
- Manufacturer specialising in stainless steel automotive, snowmobile, and various aftermarket performance exhaust systems.
- Mijin Industry Co., Ltd.
- Manufacturer of alloy wheels and stainless steel mufflers.
- Miller Catalyzer Corporation
- Manufacturer and distributor of new and remanufacturered direct-fit catalytic converters, selling to distributors, wholesalers, and the public.
- Monty Mufflers
- Stainless steel mufflers for Porsche and Ferrari.
- Red's Headers
- Makes headers for early Fords, specialising in flathead and Y-block. Also dealing in speed equipment for early Fords.
- Stainless Specialties
- Manufactures stainless steel automotive and marine exhaust components.
- United Muffler
- Manufactures heavy duty, truck, and diesel mufflers, exhaust systems, and accessories.
- Wescast Industries
- Manufacturer of exhaust manifolds for cars and light trucks.
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